Sharp CDC-449-W, CDK-449-W Service manual

CD-C449W/K449W

SERVICE MANUAL

No.S8875CDC449W/

CD-C449W
CD-K449W

CD-C449W mini component system consisting of
CD-C449W mini component system and
CP-C449 speaker system.
CD-K449W mini component system consisting of
CD-K449W mini component system and
CP-C449 speaker system.

• In the interests of user-safety the set should be restored to its

● SRS, the SRS Logo (●) and the Sound Retrieval System
are registered trademarks of SRS Labs, Inc. in the United
States.

original condition and only parts identical to those specified be
used.

CONTENTS

SAFETY PRECAUTION FOR SERVICE MANUAL ........................................................................................................... 2

SPECIFICATIONS ............................................................................................................................................................. 3

VOLTAGE SELECTION......................................................................................................................................................3

NAMES OF PARTS ........................................................................................................................................................... 4

OPERATION MANUAL ...................................................................................................................................................... 7

DISASSEMBLY.................................................................................................................................................................. 9

REMOVING AND REINSTALLING THE MAIN PARTS................................................................................................... 12

ADJUSTMENT ................................................................................................................................................................. 13

NOTES ON SCHEMATIC DIAGRAM .............................................................................................................................. 17

TYPES OF TRANSISTOR AND LED................................................................................................................................17

WAVEFORMS OF CD CIRCUIT...................................................................................................................................... 18

BLOCK DIAGRAM ........................................................................................................................................................... 19

SCHEMATIC DIAGRAM / WIRING SIDE OF P.W.BOARD............................................................................................. 22

TROUBLESHOOTING ..................................................................................................................................................... 46

FUNCTION TABLE OF IC................................................................................................................................................ 50

FL DISPLAY..................................................................................................................................................................... 57

REPLACEMENT PARTS LIST/EXPLODED VIEW

Page

SECTION

KARAOKECIRCUIT

SHARP CORPORATION

CD-C449W

– 1 –

CD-K449W

This document has been published to be used
for after sales service only.
The contents are subject to change without notice.

CD-C449W/K449W

SAFETY PRECAUTION FOR SERVICE MANUAL

WARNINGS

THE AEL (ACCESSIBLE EMISSION LEVEL) OF THE LASER POWER OUTPUT IS LESS THAN CLASS 1 BUT THE LASER
COMPONENT IS CAPABLE OF EMITTING RADIATION EXCEEDING THE LIMIT FOR CLASS 1. THEREFORE IT IS
IMPORTANT THAT THE FOLLOWING PRECAUTIONS ARE OBSERVED DURING SERVICING TO PROTECT YOUR EYES
AGAINST EXPOSURE TO THE LASER BEAM.

1-WHEN THE CABINET IS REMOVED, THE POWER IS TURNED ON WITDOUT A COMPACT DISC IN POSITION AND THE

PICK-UP IS ON THE OUTER EDGE THE LASER WILL LIGHT FOR SEVERAL SECONDS TO DETECT A DISC. DO NOT
LOOK INTO THE PICK-UP LENS.

2-THE LASER POWER OUTPUT OF THE PICK-UP UNIT AND REPLACEMENT SERVICE PARTS ARE ALL FACTORY

PRE-SET BEFORE SHIPMENT.

DO NOT ATTEMPT TO RE-ADJUST THE LASER PICK-UP UNIT DURING REPLACEMENT OR SERVICING.
3-UNDER NO CIRCUMSTANCES STARE INTO THE PICK-UP LENS AT ANY TIME.
4-CAUTION-USE OF CONTROLS OR ADJUSTMENTS, OR PERFORMANCE OF PROCEDURES OTHER THAN THOSE

SPECIFIED HEREIN MAY RESULT IN HAZARDOUS RADIATION EXPOSURE.

CAUTION

Laser Diode Properties
Material: GaAIAs
Wavelength: 780 nm
Emission Duration: continuous
Laser Output: max. 0.6 mW

● This Mini Component System is classified as a CLASS
1 LASER product.

● The CLASS 1 LASER PRODUCT label is located on the
rear cover.

● Use of controls, adjustments or performance of proce­dures other than those specified herein may result in
hazardous radiation exposure.

As the laser beam used in this compact disc player is
harmful to the eyes, do not attempt to disassemble the
cabinet. Refer servicing to qualified personnel only.

CAUTION-INVISIBLE LASER RADIATION WHEN OPEN. DO NOT STARE INTO
BEAM OR VIEW DIRECTLY WITH OPTICAL INSTRUMENTS.

VARNING-OSYNLIG LASERSTRALNING NAR DENNA DEL AR OPPNAD. STIRRA
EJ IN I STRALEN OCH BETRAKTA EJ STRALEN MED OPTISKA INSTRUMENT.

ADVERSEL-USYNLIG LASERSTRALING VED ABNING. SE IKKE IND I
STRALEN-HELLER IKKE MED OPTISKE INSTRUMENTER.

VARO! AVATTAESSA OLET ALTTIINA NAKYMATON LASERSATEILYLLE.
ALA TUIJOTA SATEESEEN ALAKA KATSO SITA OPTISEN LAITTEEN LAPI.

VARNING-OSYNLIG LASERSTRALNING NAR DENNA DEL AR OPPNAD.
STIRRA EJ IN I STRALEN OCH BETRAKTA EJ STRALEN GENOM OPTISKT
INSTRUMENT.

ADVERSEL-USYNLIG LASERSTRALING NAR DEKSEL APNES. STIRR IKKE
INN I STRALEN ELLER SE DIREKTE MED OPTISKE INSTRUMENTER.

VARO ! Avattaessa ja suojalukitus ohitettaessa olet alttiina näkymättömälle lasersäteilylle. Älä katso säteeseen.
VARNING! Osynlig laserstralning när denna del är öppnad och spärren är urkopplad. Betrakta ej strälen.

– 2 –

CD-C449W/K449W

CD-C449W/K449W

SPECIFICATIONS

● General

Power source: AC 110/127/220/230-240 V,

50/60 Hz

Power consumption: 120 W
Dimensions: Width; 270 mm (10-5/8")

Height; 316 mm (12-1/2")
Depth; 343 mm (13-1/2")

Weight: 9.2 kg (20.3 lbs.)

● Amplifier section

Output power: PMPO; 1200 W

MPO; 240 W (120 W + 120 W)
(10 % T.H.D.)
RMS; 150 W (75 W + 75 W)
(10 % T.H.D.)

Output terminals: Speakers; 8 ohms

Headphones; 16-50 ohms
(recommended; 32 ohms)
CD digital output (optical)

Input terminals: Video/Auxiliary (audio signal)

1/2; 500 mV/47 kohms
Microphone 1/2; 1 mV/4.7 kohms
(CD-K449W only)

● Tuner section

Frequency range: FM; 88 - 108 MHz

SW2; 9.5 - 21.85 MHz
SW1; 3.2 - 7.3 MHz
MW; 531 - 1,602 kHz

● Cassette deck section

Frequency response: 50-14,000 Hz (Normal tape)
Signal/noise ratio: 55 dB (TAPE 1, playback)

50 dB (TAPE 2, recording/
playback)

Wow and flutter: 0.15 % (WRMS)

● Compact disc player section

Type: 3-disc multi-play compact disc

player

Signal readout: Non-contact, 3-beam semi-

conductor laser pickup

D/A converter: 1-bit D/A converter
Frequency response: 20 - 20,000 Hz
Dynamic range: 90 dB (1 kHz)

CP-C449

● Speaker section

Type: 3-way type [130 mm (5-1/8")

woofer, 50 mm (2") tweeter and
super tweeter]

Maximum input
power: 150 W
Impedance: 8 ohms
Dimensions: Width; 220 mm (8-11/16")

Height; 316 mm (12-1/2")
Depth; 284 mm (11-3/16")

Weight: 3.6 kg (7.9 lbs.)/each

VOLTAGE SELECTION

The voltage selector is located on the AC voltage selector box. If adjustment is necessary, use a screwdriver in order to turn the
selector in either direction until the correct voltage figure is displayed in the window next to the adjustment screw.

QACCA0001AW00

QACCE0008AW00

Figure 2 AC POWER SUPPLY CORD AND AC PLUG ADAPTOR

AQCCJ0003AW00

– 3 –

CD-C449W/K449W

CD-C449W/K449W

SPECIFICATIONS

● General

Power source: AC 110/127/220/230-240 V,

50/60 Hz

Power consumption: 120 W
Dimensions: Width; 270 mm (10-5/8")

Height; 316 mm (12-1/2")
Depth; 343 mm (13-1/2")

Weight: 9.2 kg (20.3 lbs.)

● Amplifier section

Output power: PMPO; 1200 W

MPO; 240 W (120 W + 120 W)
(10 % T.H.D.)
RMS; 150 W (75 W + 75 W)
(10 % T.H.D.)

Output terminals: Speakers; 8 ohms

Headphones; 16-50 ohms
(recommended; 32 ohms)
CD digital output (optical)

Input terminals: Video/Auxiliary (audio signal)

1/2; 500 mV/47 kohms
Microphone 1/2; 1 mV/4.7 kohms
(CD-K449W only)

● Tuner section

Frequency range: FM; 88 - 108 MHz

SW2; 9.5 - 21.85 MHz
SW1; 3.2 - 7.3 MHz
MW; 531 - 1,602 kHz

● Cassette deck section

Frequency response: 50-14,000 Hz (Normal tape)
Signal/noise ratio: 55 dB (TAPE 1, playback)

50 dB (TAPE 2, recording/
playback)

Wow and flutter: 0.15 % (WRMS)

● Compact disc player section

Type: 3-disc multi-play compact disc

player

Signal readout: Non-contact, 3-beam semi-

conductor laser pickup

D/A converter: 1-bit D/A converter
Frequency response: 20 - 20,000 Hz
Dynamic range: 90 dB (1 kHz)

CP-C449

● Speaker section

Type: 3-way type [130 mm (5-1/8")

woofer, 50 mm (2") tweeter and
super tweeter]

Maximum input
power: 150 W
Impedance: 8 ohms
Dimensions: Width; 220 mm (8-11/16")

Height; 316 mm (12-1/2")
Depth; 284 mm (11-3/16")

Weight: 3.6 kg (7.9 lbs.)/each

VOLTAGE SELECTION

The voltage selector is located on the AC voltage selector box. If adjustment is necessary, use a screwdriver in order to turn the
selector in either direction until the correct voltage figure is displayed in the window next to the adjustment screw.

QACCA0001AW00

QACCE0008AW00

Figure 2 AC POWER SUPPLY CORD AND AC PLUG ADAPTOR

AQCCJ0003AW00

– 3 –

CD-C449W/K449W

CD-C449W/K449W

■ Front panel

11. (CD) Disc Tray

12. (CD) Disc Number Select Buttons

13. (CD) Disc Skip Button

14. (CD) Open/Close Button

15. (CD) Disc Number Indicators

16. SRS Indicator

17. (TAPE 2) Direction Indicators

18. (TAPE 2) Reverse Mode Indicator

19. (CD) Play Indicator

10. (CD) Repeat Play Indicator

11. (CD) Pause Indicator

12. (TAPE 2) Record Indicator

13. Timer Record Indicator

14. Timer Play Indicator

15. Sleep Indicator

16. Extra Bass Indicator

17. (CD) Random Play Indicator

18. (CD/TUNER) Memory Indicator

19. (TUNER) FM Stereo Indicator

20. (TUNER) FM Stereo Mode Indicator

21. Karaoke Indicator (CD-K449W Only)

22. Spectrum Analyzer

23. Function Selector Buttons

24. Equalizer Mode Selector Buttons

25. Extra Bass Button

26. Volume Control

27. On/Stand-by Button

28. Headphone Socket

29. Karaoke Maker Switch (CD-K449W Only)

30. Microphone Sockets (CD-K449W Only)

31. Microphone Level Controls (CD-K449W Only)

32. Digital Echo Control (CD-K449W Only)

33. 3D Surround/Demo Mode Button

34. Clock Button

35. Sleep Button

36. (TAPE 2) Reverse Mode Button

37. (CD) Pause Button

38. Jog Dial

39. (CD/TAPE) Stop Button

40. (TAPE) Record Pause Button

41. Balance Control Buttons

42. Timer Button

43. Memory Button

44. (CD) Clear Button

45. (CD) Track Down/Review Button

3 (TAPE 2) Fast Wind Button
3 (TUNER) Tuning Down Button

46. (TAPE 2) Reverse Play Button

47. (CD) Play/Repeat Button

3 (TAPE 1) Play Button
3 (TAPE 2) Forward Play Button

48. (CD) Track Up/Cue Button

3 (TAPE 2) Fast Wind Button
3 (TUNER) Tuning Up Button

49. Editing Speed Selector Buttons

NAMES OF PARTS

1

9

13

5

10

11

1415 16

342

67

12

17

19 20

23

24

27 28 29

21

22

25 26

30 31 32

34 35 36 37 38 39 40 41

42 43 44 45 46 47 48 49

8

18

33

– 4 –

CD-C449W/K449W

11.

(TAPE 1) Cassette Compartment

12.

(TAPE 2) Cassette Compartment

■ Rear panel

11.

CD Digital Output Socket

12.

Video/Auxiliary (Audio Signal) Input Sockets

13.

Span Selector Switch

14.

FM 75 Ohms Aerial Terminal

15.

Aerial Earth Terminal

16.

SW1/SW2/MW Aerial Terminal

17.

AC Voltage Selector

18.

AC Power Lead

19.

Speaker Terminals

1

1

2

23

4
5

6

CP-C449

■ Speaker section

11.

Super Tweeter

12.

Tweeter

13.

Woofer

14.

Bass Reflex Ducts

15.

Speaker Terminals

7

8

9

1
2

5

3
4

– 5 –

CD-C449W/K449W

■ Remote control

11.

Remote Control Transmitter LED

● CD control section

12.

Disc Number Select Buttons

13.

Track Down/Review Button

14.

Track Up/Cue Button

15.

Disc Skip Button

16.

Play/Repeat Button

17.

Stop Button

18.

Memory Button

19.

Clear Button

10.

Random Button

11.

Pause Button

2
3

4

1

5
6
7

● Tuner control section

12.

Preset Up/Down Buttons

● Tape control section

13.

(TAPE 2) Record Pause Button

14.

(TAPE 2) Reverse Play Button

15.

(TAPE 1) Play Button

3

(TAPE 2) Forward Play Button

16.

(TAPE 1/2) Stop Button

17.

(TAPE 2) Fast Wind Buttons

● Common section

18.

3D Surround Pass Button

19.

Equalizer Mode Button

20.

Function Selector Buttons

21.

Balance Control Buttons

22.

On/Stand-by Button

23.

Dimmer Button

24.

3D Surround Mode Button

25.

Extra Bass Button

26.

Volume Up/Down Buttons

13
14

18
19

20

21

22

23

89 11

10

12

15

16

17

24
25

26

– 6 –

SETTING THE CLOCK

OPERATION MANUAL

1

Press the ON/STAND-BY button to enter the stand-by mode.

CD-C449W/K449W

In this example, the clock is set for the 24-hour
(0:00) system.

Jog dial

CLOCK

ON/STAND-BY

MEMORY

TUNING
( )

2

3

4

0:00 AM 12:00 AM 0:00

5

6

7

2

Press the CLOCK button.

3

Within 5 seconds, press the MEMORY button.

4

Turn the jog dial to select the time display mode.
"0:00" → The 24-hour disp lay will ap pear.

(0:00 - 23:59)
"AM 12:00" → The 12-hour display will appear.
(AM or PM 12:00 - 11:59)
"AM 0: 00" → The 12-h our display w ill appear.
(AM or PM 0:00 - 11:59)

● Note that this can only be set when the unit is first installed
or it has been reset (see page 28).

5

Press the MEMORY button.

6

Adjust the hour by turning the jog dial.

● When the jog dial is turned one click clockwise, the time will
increase by 1 hour. When it is turned one click anti-clockwise,
the time will decrease by 1 hour.
Keep turning the jog dial to change the time continuously.

● When the 12-hour display is selected, "AM" will change auto­matically to "PM".

7

Press the MEMORY button.

8

Adjust the minutes by turning the jog dial.

● When the jog dial is turned one click clockwise, the time will
increase by 1 minute. When it is turned one click anti-clock­wise, the time will decrease by 1 minute.
Keep turning the jog dial to change the time continuously.

● The hour setting will not advance even if minutes advance
from "59" to "00".

9

Press the MEMORY button.

● The clock starts operating from "0" seconds. (Seconds are not
displayed.)

Note:

● In the event of a power failure or when the AC power lead is
disconnected, the clock display will go out.
When the AC power supply is restored, the clock display will
flash on and off to indicate the time when the power failure
occurred or when the AC power lead was disconnected.
If this happens, follow the procedure below to change the clock
time.

To change the clock time:

When the unit is in the stand-by mode:

①

Press the MEMORY button.

8

9

②

Perform steps 6 - 9 above.

When the unit is on:

①

Press the CLOCK button.

②

Within 5 seconds, press the MEMORY button.

③

Perform steps 6 - 9 above.

To see the time display:

Press the CLOCK button.

● The time display will appear for about 5 seconds.

To change the time display mode:

①

Perform steps 1 - 2 in the section "RESETTING THE MICRO­COMPUTER", on page 28.

②

Perform steps 1 - 9 above.

– 7 –

CD-C449W/K449W

■

FM/MW interval (span)

The International Telecommunication Union (ITU) has estab-

lished that member countries should maintain either a 10 kHz or

a 9 kHz interval between broadcasting frequencies of any MW

station. The illustration shows the 9 kHz interval zones (regions

1 and 3), and the 10 kHz interval zone (region 2).

Before using the unit, set the SPAN SELECTOR switch (on the

rear panel) to MW tuning interval (span) of your area.

To change the tuning zone:

1

Press the ON/STAND-BY button to enter the stand-by mode.

2

Set the SPAN SELECTOR switch to "50/9" for 9 kHz MW

interval (50 kHz FM interval), and "100/10" for 10 kHz MW

interval (100 kHz FM interval).

3

Press the ON/STAND-BY button whilst holding down the

button and the FLAT button.

Caution:

● The operation explained above will erase all data stored in

memory including clock and timer settings, and tuner and CD

presets.

FM/MW

(kHz)

50/9

100/10

SPAN

SELECTOR

RESETTING THE MICROCOMPUTER

Reset the microcomputer under the following conditions:

● To erase all of the stored memory contents (clock and timer

settings, and tuner and CD presets).

● If the display is not correct.

● If the operation is not correct.

1

Press the ON/STAND-BY button to enter the stand-by mode.

2

Press the ON/STAND-BY button whilst holding down the

button and the FLAT button.

Caution:

● The operation explained above will erase all data stored in

memory including clock and timer settings, and tuner and CD

presets.

ON/STAND-BY

FLAT

(Continued)

■

Remote control

● When inserting or removing the batteries, push them towards

the battery terminal.

● Installing the batteries incorrectly may cause the unit to mal-

function.

Precautions for battery use:

● Insert the batteries according to the direction indicated in the

battery compartment.

● Replace all old batteries with new ones at the same time.

● Do not mix old and new batteries.

● Remove the batteries if they are weak or if the unit will not be

used for long periods of time. This will prevent potential dam-

age due to battery leakage.

Caution:

Do not use rechargeable batteries (nickel-cadmium battery, etc.).

Notes concerning use:

● Replace the batteries if the operating distance is reduced or if

the operation becomes erratic.

● Periodically clean the transmitter LED on the remote control

and the sensor on the main unit with a soft cloth.

● Exposing the sensor on the main unit to strong light may in-

terfere with operation. Change the lighting or the direction of

the unit.

● Keep the remote control away from moisture, excessive heat,

shock, and vibrations.

+

-

-

+

15

15

● 2 "AA" size bat-

teries (UM/SUM-

3, R6, HP-7 or

similar)

0.2 m - 6 m

(8" - 20')

– 8 –

CD Tray Cover

CD Player
Unit

( E1 ) x10
ø3 x8mm

( C3 ) x1
ø3 x8mm

Hook
( C1) x3

( C2 ) x1

( C4 ) x2

( C4 ) x1

Rear Panel

Main PWB

Front Panel

1

1

2

Tuner PWB

Pull

(C2) x1

DISASSEMBLY

Caution on Disassembly

Follow the below-mentioned notes when disassembling
the unit and reassembling it, to keep it safe and ensure
excellent performance:

1. Take cassette tape and compact disc out of the unit.

2. Be sure to remove the power supply plug from the wall
outlet before starting to disassemble the unit.

3. Take off nylon bands or wire holders where they need to
be removed when disassembling the unit. After servicing
the unit, be sure to rearrange the leads where they were
before disassembling.

4. Take suffcient care on static electricity of integrated
circuits and other circuits when servicing.

CD-C449W/K449W

STEP REMOVAL

1 Top Cabinet 1. Screw ..................... (A1) x4 9-1

2 Side Panel 1. Screw ..................... (B1) x8 9-1

(Left/right)

3 CD Player Unit/ 1. Turn on the power supply, 9-2

CD Tray Cover open the disc tray, take out

4 Tuner PWB 1. Socket .................... (D1) x1 10-1

5 Rear Panel 1. Screw ..................... (E1) x11 9-2

6 Main PWB 1. Flat cable ............... (F1) x2 10-1

7

Karaoke PWB
(CD-K449W only)

8 Front Panel 1. Flat wire ................. (H1) x1 10-2

9

Power Amp. PWB

10

Power Supply PWB

11 Display PWB 1. Knob....................... (L1) x2 10-4

12 CD Switch PWB 1. Screw ..................... (M1) x3 10-4

13

Headphones PWB

14 Tape Mechanism 1. Screw ..................... (P1) x6 10-4

15 Turntable 1. Screw ..................... (Q1) x1 10-5

16 Disc Tlay 1. Screw ..................... (R1) x2 10-5

17 CD Servo PWB 1. Screw ..................... (S1) x1 10-6

(Note2) 2. Socket .................... (S2) x4

18 CD Changer 1. Screw ..................... (T1) x4 11-1

Mechanism

19 CD Mechanism 1. Screw ..................... (U1) x1 11-1

Note 1:

How to open the changer manually. (Fig. 10-3)

1. Then, turn fully the lock lever in the arrow direction through
the hole on the loading chassis bottom in this state.
After that, push forward the CD player base.

2. After removing the connector for the optical pickup fromthe
connector wrap the conductive aluminium foil around the
front end of connector so as to protect the optical pickup
from electrostatic damage.

PROCEDURE

the CD cover, and close.
(Note 1)

2. Hook....................... (C1) x3

3. Hook....................... (C2) x2

4. Screw ..................... (C3) x1

5. Socket .................... (C4) x3

2. Screw ..................... (D2) x5

................................... 10-1

2. Flat wire .................

3. Socket...................... (F3) x3

4. Screw....................... (F4) x3

1. Screw ..................... (G1) x2 10-2

2. Screw...................... (H2) x2

1. Socket .................... (J1) x2 10-2

2. Screw ..................... (J2) x6

1. Screw ..................... (K1) x6 10-3

2. Nut.......................... (L2) x1

3. Screw ..................... (L3)x12

1. Screw ..................... (N1) x1 10-4

2. Cover ..................... (Q2) x1

2. Guide ..................... (R2) x2

(F2) x3

FIGURE

CD-C477W/K449W

( B1 ) x2
ø3 x8mm

Side Panel
(Right)

( B1 ) x4
ø3 x8mm

– 9 –

( A1 ) x2
ø3 x12mm

Rear Panel

LOCK
LEVER

CD-C449W/K449W

Top Cabinet

( A1 ) x2
ø3 x12mm

Side Panel
(Left)

( B1 ) x2
ø3 x8mm

Figure 9-1

Figure 9-2

Figure 9-3

CD-C449W/K449W

CD-K449W
Only

Rear
Panel

(D2) x1
ø3x10mm

(G1)x2
ø3x10mm

CD-K449W
Only

(J2)x5
ø3x10mm

(E1) x1
ø3 x10mm

(F2) x2

Karaoke
PWB

(G1)x1
ø3x10mm

(F2) x1

(F3) x2

Figure 10-1

(F1) x1

(D1) x1

Tuner PWB

(F4) x2
ø3x10mm

Front Panel

(D2) x4
ø3 x10mm

Front Panel

( J1 ) x2

(F3) x2

(F4) x1
ø3x10mm

Main PWB

( H1 ) x1

CD Switch PWB

Front Panel

(M1)x3
ø3x10mm

(L3)x12
ø3x10mm

Tape Mechanism

(P1)x6
ø3x10mm

( Q1 ) x1
ø3 x10mm

( Q2 ) x1

Lug Wire

Figure 10-4

(L1)x2

Washer

(L2)x1

Display
PWB

Headphones
PWB

Open

(N1)x1

ø3x10mm
Cassette
Holder (Left/Right)

Turntable

Power Supply PWB

(K1)x1
ø3x8mm

Figure 10-2

(K1)x4
ø4x8mm

( J2 ) x1
ø3x10mm

Power Amp. PWB

(K1)x1
ø3x10mm

( H2 ) x1
ø3x10mm

( R1 ) x1
ø3 x10mm

( R2 ) x1

CD Player Unit

( S2 ) x2

Disc Tray

( R1 ) x1
ø3 x10mm

( R2 ) x1

Figure 10-5

( S1 ) x1
ø3 x10mm

CD Servo PWB

Figure 10-3

( S2 ) x2

CD Player Unit

Figure 10-6

– 10 –

CD-C449W/K449W

Screw driver

Woofer

Woofer

Net

(A1)x1

Baffle Board

(A2)x1

Tweeter

Tweeter

Super

Tweeter

(A5)x2

ø3x10mm

(A3)x2

ø3x10mm

(A4)x4

ø4x16mm

( U1 ) x4
ø3 x12mm

( V1 ) x1
ø2.6 x10mm

Shift Lever

CD Changer
Mechanism

CD Player Base

CD Mechanism

Be careful when installing the CD changer mechanism.
Install the CD changer mechanism on the CD player base after
the shift lever has been set in the highest position.

Figure 11-1

CP-C449

STEP REMOVAL

1 Front Speaker 1. Net.......................... (A1) x1 11-2

CP-C449

PROCEDURE

2. Front Panel ............ (A2) x1

3. Screw ..................... (A3) x2

4. Screw ..................... (A4) x4

5. Screw ..................... (A5) x2

FIGURE

Figure 11-2

– 11 –

CD-C449W/K449W

REMOVING AND REINSTALLING THE MAIN PARTS

CD MECHANISM SECTION

Perform steps 1, 2, 3,15,16,17 and 19 of the disassembly
method to remove the CD mechanism.

How to remove the loading motor
(See Fig. 12-1)

1. Remove the screws (A1) x 2 pcs., to remove the loading
motor.

Loading / Up
/ Down Motor

Motor
PWB

( A1 ) x2
ø2.6 x5mm

Figure 12-1

How to remove the pickup (See Fig. 12-2)

1. Remove the screws (B1) x 2 pcs., to remove the shaft (B2).

2. Remove the stop washer (B3) x 1 pc., to remove the gear
(B4).

3. Remove the pickup.

Note

After removing the connector for the optical pickup fromthe

connector wrap the conductive aluminium foil around the
front end of connector so as to protect the optical pickup
from electrostatic damage.

( B1 ) x2
ø2.6 x6mm

Shaft
( B2 ) x1

Stop Washer
( B3 ) x1

Pickup

CD Mechanism
Gear
( B4 ) x1

Figure 12-2

– 12 –

ADJUSTMENT

MECHANISM SECTION

• Driving Force Check

Torque Meter

Play: TW-2412 Tape 1: Over 80 g

• Torque Check

Torque Meter

Tape 1

Play: TW-2111 30 to 60 g. cm 30 to 100 g.cm
Fast forward: TW-2231 — 50 to 100 g.cm
Rewind: TW-2231 — 50 to 100 g.cm

• Tape Speed

Test Tape

Normal MTT-111 VRM01 3,000 ± Speaker
speed 30 Hz terminal

Adjusting

Point

Specified Value

Tape 2: Over 80 g

Specified Value

Specified

Value

Tape 2

Instrument

Connection

(Load
resistance:
8 ohms)

CD-C449W/K449W

TUNER SECTION

fL: Low-range frequency
fH: High-renge frequency

• AM IF/RF

Signal generator: 400 Hz, 30%, AM modulated

Test Stage

IF 450 kHz 1,602 kHz T351 *1
MW Band — 531 kHz (fL): T306 *2

Coverage 1.1 ± 0.1 V
SW1 Band — 3.2 MHz (fL): T307 *2

Coverage 2.0 ± 0.1V
SW1 Band — 7.3 MHz (fH): TC305 *2

Coverage 7.7 ± 0.2 V
SW2 Band — 9.5 MHz (fL): T308 *2

Coverage 2.1 ± 0.1V
SW2 Band — 21.85 MHz (fH): TC304 *2

Coverage 7.7 ± 0.2V
MW 990 kHz 990 kHz T302 *1

Tracking
SW1 3.9 MHz 3.9 MHz (fL): T303 *1

Tracking
SW1 7.1 MHz 7.1 MHz (fH): TC303 *1

Tracking
SW2 11.65 MHz 11.65 MHz (fL): T304 *1

Tracking
SW2 21.45 MHz 21.45 MHz (fH): TC302 *1

Tracking

Frequency

Frequency

Display

Setting/

Adjusting

Parts

Instrument

Connection

TAPE MECHANISM PWB

VRM01

TAPE

FAS
SW

Figure 13

SPEED

*1. Input: Antenna, Output: TP302
*2. Input: Anetnna, Output: TP301

– 13 –

CD-C449W/K449W

• FM RF

Signal generator: 1 kHz, 40 kHz dev, FM modulated

Test Stage

Band — 87.5 kHz (fL): LT02 *1
Coverage 3.7 ± 0.1 V

RF 98 MHz 98 MHz LT01 *2

*1. Input: Antenna, Output: TP301
*2. Input: Anetnna, Output: Speaker Terminal

Frequency

10 - 30 dB

Frequency

Display

• Setting the Test Mode

Keeping the PAUSE button and TUNER button pressed, turn
on POWER. Then, the frequency is initially set in the memory
as shown in Table. Call it with the PRESET button to use it for
adjustment and check of tuner circuit.

Preset

No.

21 ~ 40

FM Preset

1 87.50 MHz 6 531 kHz 11 3.2 MHz 16 9.5 MHz
2 108.00 MHz 7 1,602 kHz 12 7.3 MHz 17 21.85MHz
3 90.00 MHz 8 603 kHz 13 3.9 MHz 18 11.65 MHz
4 106.00 MHz 9 1,404 kHz 14 7.1 MHz 19 21.45 MHz
5 98.00 MHz 10 990 kHz 15 5.06 MHz 20 15.1 MHz

No.

MW

Preset

No.

Setting/

Adjusting

Parts

SW1

Instrument

Connection

Preset

No.

SW2

• FM Detection

Signal generator: 10.7 MHz, FM sweep

Test Stage

IF 10.7 MHz 98 MHz TT01 *1

*1. Input: Antenna, Output: TP301
*2. Input: Anetnna, Output: Speaker Terminal

• FM Mute Level

Signal generator: 1kHz, 40 kHz dev., FM modulated

Frequency Adjusting

98.00 MHz 98.00 MHz VR351 *1 Input: Antenna
(25 dBµV) Output: Speaker

*1. Adjust so that an output signal appears.

Frequency

Frequency

Display

Frequency

Display

Setting/

Adjusting

Parts

(Turn the
core of trans­former TT01
fully counter­clock wise)

Parts

Instrument

Connection

Instrument

Connection

Terminal

R357

TUNER PWB

T351

AM IF

IC303

TP302

VR351

FM Mute
Level

fL fH

SW2
Coverage

SW1 Band
Coverage

fL fH

T307 TC305

T308 TC304

FM Band
Coverage

LT02

T306

MW Band
Coverage

TT01

TP301

FM IF FM RF

LT01

SW2 Tracking

fH fL

T304TC302

T303TC303

T302

MW
Tracking

SO301
ANTENNA
TERMINAL

fH fL

SW1
Tracking

Figure 14 ADJUSTMENT POINTS

– 14 –

TEST MODE

• Setting the test mode
Any one of test mode can be set by pressing several keys as follows.
<REC. PAUSE> + <DISC. SKIP> + <POWER> TEST: CD operation test

• TEST mode

Function — CD test mode

Setting of TEST mode
Indication of CD TST mode (Fig. 15-1)
OPEN/CLOSE operation is manual operation.
The pickup can be moved by using the ( ) or ( ) key.

<MEMORY>
LASER ON

<MEMORY>
Tracking on the spot.
SERVO OFF PLAY

<MEMORY>
Tracking on the spot.
SERVO ON PLAY

IL is not performed.

CD-C449W/K449W

<STOP>

STOP

<PLAY> key input

TOC. IL is performed, and the ordinary PLAY is performed.
If the following key is pressed during PLAY, it is possible
to specify directly any Track No.
<Disc Number 1> key: Track 4
<Disc Number 2> key: Track 9

Press <STOP> key.

Stop

<Disc Number 3> key: Track 15

Note:

Only in STOP state it is possible to slide the pickup with the ( ) or ( ) key.
VOL. --- Last memory

BAL. --- CENTER
R.GEQ. --- FLAT
X-BAS --- OFF

Canceling method - POWER OFF

Figure 15-1

CD SECTION

Since this CD system incorporates the following automatic adjustment function, when the pickup is replaced, it is not necessary
to readjust it.
Since this CD unit does not need adjustment, the combination of PWB and laser pickup unit is not restricted.

• Automatic adjustment item

1. Focus offset (Fig. 15-2)

2. Tracking offset (Fig. 15-3)

3. E/F balance (tracking error balance) (Fig. 15-4)

4. RF level AGC function (HF level: constant)

5. RF level automatic follow-up of the tracking gain
This automatic adjustment is performed each time a disc is changed. Therefore,

each disc is played back using the optimal settings.

0.1s

0.50 V
IC1 20 FE

0.1s

0.50 V
IC1 7 TE

FOCUS
OFF-SET
ADJUST

TRACKING
OFF-SET
ADJUST

1
2

10ms

0.50 V
IC1 20 FE

10ms

0.50 V
IC1 7 TE

Figure 15-2

200 ms
1V/diV
IC 1 15

200 ms
1V/diV
IC 1 7

TO

TE

TRACKING/
ERROR
BARANCE

1

ADJUST

2

Figure 15-4

– 15 –

Figure 15-3

Enlarged
View

TRACKING
OFF-SET
ADJUST

1
2

CD-C449W/K449W

(Continued)

Ordinary stereo sound

Listening area
(Listening range with good stereo fidelity)

3D SURROUND

SRS

MODE

PASS

■SRS (●) 3D SURROUND

About SRS (●) 3D surround:

SRS is a breakthrough technology that creates 3-dimensional
sound by processing sound signals based on the human auditory
system. It produces real depth and localization of the sound
image which cannot be accomplished by ordinary stereo.
SRS only requires two speakers.

SRS (●) 3D surround effects:

● Live performance atmosphere

(Simulates a live concert atmosphere)

● The localization of various musical sources is quite clear.
(The positions of the musical instruments and singers are very
clear.)

● Reproduction of depth
(Sounds from the front and back of an orchestra can be ident­ified easily.)

● Expansion of the sound field
(The sound image is spread out over a wide area.)

Selecting the 3D surround mode:

When the sound source is in stereo, you can select from any of
5 different 3D surround effect.

1 Select any desired audio source and begin playback.
2 To hear the 3D surround effect, press the SRS MODE button.

● "SRS (●)" will appear.

Wide listening area
(Stereo music can be heard anywhere in the room.)

SURROUND
MODE

MODE-1

MODE-2

MODE-3

Effect from each mode

You will enjoy a sound image that pro­duces an intimate sound field. (as in
a medium-size hall)

This setting gives you a maximum
sound field as music comes out be­yond the speakers. (as in a large,
domed arena)

This setting is great for live recording
and vocal music.

When the SRS MODE button is pressed, the current mode setting
will be displayed. To change to a different mode, press the SRS
MODE button repeatedly.

● "PASS" will not be displayed in remote control operation.

MODE-1 MODE-2 MODE-3 MODE-4 MODE-5 PASS

Notes:

● The 3D SURROUND effect will not work on a monaural sound
source.

● When the 3D surround mode is being used, the equalizer will
be set to FLAT.

To cancel the 3D surround effect:

(Main unit operation)

Press the SRS MODE button repeatedly to select "PASS".

(Remote control operation)

Press the PASS button.

MODE-4

MODE-5

You will hear more vocals in an inti­mate sound field. (as at a live music
performance)

This setting greatly increases the
amount of vocals or centre sounds in
a recording. (as in a small club)

– 16 –

NOTES ON SCHEMATIC DIAGRAM

FRONT

VIEW

• Resistor:
To differentiate the units of resistors, such symbol as K and
M are used: the symbol K means 1000 ohm and the symbol
M means 1000 kohm and the resistor without any symbol is
ohm-type resistor. Besides, the one with “Fusible” is a fuse
type.

• Capacitor:
To indicate the unit of capacitor, a symbol P is used: this
symbol P means micro-micro-farad and the unit of the
capacitor without such a symbol is microfarad. As to
electrolytic capacitor, the expression “capacitance/withstand
voltage” is used.
(CH), (TH), (RH), (UJ): Temperature compensation
(ML): Mylar type
(P.P.): Polypropylene type

• Schematic diagram and Wiring Side of P.W.Board for this
model are subject to change for improvement without prior
notice.

REF. NO DESCRIPTION POSITION POSITIONREF. NO DESCRIPTION

SW1 OPEN/CLOSE ON—OFF
SW2 MECHA UP ON—OFF
SW3 DISC NUMBER ON—OFF
SW4 PICKUP IN ON—OFF
SW991 VOLTAGE SELECTOR 230-240V
SWD1 VOLUME JOG ON—OFF
SWD2 JOG ON—OFF
SWD3 X-BASS ON—OFF
SWD7 SOFT ON—OFF
SWD8 VOCAL ON—OFF
SWD9 HAVY-2 ON—OFF
SWD10 HAVY-1 ON—OFF
SWD11 FLAT ON—OFF
SWD12 TUNING UP/CUE ON—OFF
SWD13 STOP ON—OFF
SWD14 NORMAL EDIT ON—OFF
SWD15 HIGH EDIT ON—OFF
SWD16 REC/PAUSE ON—OFF
SWD17 F-PLAY ON—OFF
SWD18 SRS/DEMO ON—OFF
SWD21 BAL RIGHT ON—OFF
SWD22 BAL LEFT ON—OFF
SWD30 TUNING DOWN/REWIND ON—OFF
SWD31 CD PAUSE ON—OFF

FRONT

VIEW

• The indicated voltage in each section is the one measured
by Digital Multimeter between such a section and the chas­sis with no signal given.

1. In the tuner section,

( ) indicates AM
< > indicates FM stereo

2. In the main section, a tape is being played back.

3. In the deck section, a tape is being played back.

( ) indicates the record state.

4. In the power section, a tape is being played back.

5. In the CD section, the CD is stopped.

• Parts marked with “ ” ( ) are important for
maintaining the safety of the set. Be sure to replace these
parts with specified ones for maintaining the safety and
performance of the set.

SWD32 REVERSE MODE ON—OFF
SWD33 R-PLAY ON—OFF
SWD34 CLOCK ON—OFF
SWD35 MEMORY ON—OFF
SWD36 TIMER ON—OFF
SWD37 SLEEP ON—OFF
SWD38 CLEAR ON—OFF
SWD39 VIDEO/AUX 1 ON—OFF
SWD40 VIDEO/AUX 2 ON—OFF
SWD41 TAPE 1/2 ON—OFF
SWD42 TUNER/BAND ON—OFF
SWD43 CD ON—OFF
SWD48 POWER ON—OFF
SWD49 KARAOKE (CD-K449W Only) ON—OFF
SWD50 DISC 1 ON—OFF
SWD51 DISC 2 ON—OFF
SWD52 DISC 3 ON—OFF
SWD53 DISC SKIP ON—OFF
SWD54 OPEN/CLOS ON—OFF
SWF2 SPAN SELECTOR 50/9
SWM3 REC FWD ON—OFF
SWM4 REC RVS ON—OFF
SWM5 F.A.S ON—OFF
SWM6 CAM ON—OFF

FRONT

VIEW

CD-C449W/K449W

FRONT VIEW

KTA1266 GR
KTA1270Y
KTA1271 Y
KTA1273 Y
KTA1268 GR
KTC3199 GR
KTC3203 Y

E C B

(S)(G) (D)

(1) (2) (3)

KRA107 M
KRA102 M
KRC102 M
KRC104 M
KRC107 M
2SC535 C
2SC1845 F

2SC2878 A
2SC2878 B
2SC2236 Y
2SD468 C
2SK246 GR
KTC3200 GR

Figure 17 TYPES OF TRANSISTOR AND LED

2SD2012
2SB1375

– 17 –

B C E
(D)(G)(S)
(3) (2) (1)

SLR325MG
SLR325VR
KL052UL
SLR505MC
LMKD515B

KV1236Z23

NOTES ON SCHEMATIC DIAGRAM

FRONT

VIEW

• Resistor:
To differentiate the units of resistors, such symbol as K and
M are used: the symbol K means 1000 ohm and the symbol
M means 1000 kohm and the resistor without any symbol is
ohm-type resistor. Besides, the one with “Fusible” is a fuse
type.

• Capacitor:
To indicate the unit of capacitor, a symbol P is used: this
symbol P means micro-micro-farad and the unit of the
capacitor without such a symbol is microfarad. As to
electrolytic capacitor, the expression “capacitance/withstand
voltage” is used.
(CH), (TH), (RH), (UJ): Temperature compensation
(ML): Mylar type
(P.P.): Polypropylene type

• Schematic diagram and Wiring Side of P.W.Board for this
model are subject to change for improvement without prior
notice.

REF. NO DESCRIPTION POSITION POSITIONREF. NO DESCRIPTION

SW1 OPEN/CLOSE ON—OFF
SW2 MECHA UP ON—OFF
SW3 DISC NUMBER ON—OFF
SW4 PICKUP IN ON—OFF
SW991 VOLTAGE SELECTOR 230-240V
SWD1 VOLUME JOG ON—OFF
SWD2 JOG ON—OFF
SWD3 X-BASS ON—OFF
SWD7 SOFT ON—OFF
SWD8 VOCAL ON—OFF
SWD9 HAVY-2 ON—OFF
SWD10 HAVY-1 ON—OFF
SWD11 FLAT ON—OFF
SWD12 TUNING UP/CUE ON—OFF
SWD13 STOP ON—OFF
SWD14 NORMAL EDIT ON—OFF
SWD15 HIGH EDIT ON—OFF
SWD16 REC/PAUSE ON—OFF
SWD17 F-PLAY ON—OFF
SWD18 SRS/DEMO ON—OFF
SWD21 BAL RIGHT ON—OFF
SWD22 BAL LEFT ON—OFF
SWD30 TUNING DOWN/REWIND ON—OFF
SWD31 CD PAUSE ON—OFF

FRONT

VIEW

• The indicated voltage in each section is the one measured
by Digital Multimeter between such a section and the chas­sis with no signal given.

1. In the tuner section,

( ) indicates AM
< > indicates FM stereo

2. In the main section, a tape is being played back.

3. In the deck section, a tape is being played back.

( ) indicates the record state.

4. In the power section, a tape is being played back.

5. In the CD section, the CD is stopped.

• Parts marked with “ ” ( ) are important for
maintaining the safety of the set. Be sure to replace these
parts with specified ones for maintaining the safety and
performance of the set.

SWD32 REVERSE MODE ON—OFF
SWD33 R-PLAY ON—OFF
SWD34 CLOCK ON—OFF
SWD35 MEMORY ON—OFF
SWD36 TIMER ON—OFF
SWD37 SLEEP ON—OFF
SWD38 CLEAR ON—OFF
SWD39 VIDEO/AUX 1 ON—OFF
SWD40 VIDEO/AUX 2 ON—OFF
SWD41 TAPE 1/2 ON—OFF
SWD42 TUNER/BAND ON—OFF
SWD43 CD ON—OFF
SWD48 POWER ON—OFF
SWD49 KARAOKE (CD-K449W Only) ON—OFF
SWD50 DISC 1 ON—OFF
SWD51 DISC 2 ON—OFF
SWD52 DISC 3 ON—OFF
SWD53 DISC SKIP ON—OFF
SWD54 OPEN/CLOS ON—OFF
SWF2 SPAN SELECTOR 50/9
SWM3 REC FWD ON—OFF
SWM4 REC RVS ON—OFF
SWM5 F.A.S ON—OFF
SWM6 CAM ON—OFF

FRONT

VIEW

CD-C449W/K449W

FRONT VIEW

KTA1266 GR
KTA1270Y
KTA1271 Y
KTA1273 Y
KTA1268 GR
KTC3199 GR
KTC3203 Y

E C B

(S)(G) (D)

(1) (2) (3)

KRA107 M
KRA102 M
KRC102 M
KRC104 M
KRC107 M
2SC535 C
2SC1845 F

2SC2878 A
2SC2878 B
2SC2236 Y
2SD468 C
2SK246 GR
KTC3200 GR

Figure 17 TYPES OF TRANSISTOR AND LED

2SD2012
2SB1375

– 17 –

B C E
(D)(G)(S)
(3) (2) (1)

SLR325MG
SLR325VR
KL052UL
SLR505MC
LMKD515B

KV1236Z23

CD-C449W/K449W

5ms

0.50 V

1

IC1 20 F.E

5ms

5.0 V

2

IC1 54 DRF

WAVEFORMS OF CD CIRCUIT

STOP PLAY

FOCUS SERCH

0.5ms

6

10.0 V
JP+

0.5ms

7

10.0 V
JP-

0.5ms

8

3
1

0.50 V
JP

0.5ms

9

1.00 V
TE

3

4

3

4

5

6

8

0.5ms

1.00 V
HF

0.5ms

5.0 V
HFL

0.5ms

5

5.0 V
TES

0.5ms

1.00 V
HF

0.5ms

5.0 V
HFL

0.5ms

5.0 V
TES

50ms

10.0 V
JP+

50ms

7

10.0 V
JP-

50ms

0.50 V
JP

50ms

9

1.00 V
TE

CUE

1
2

3

REVIEW

1
2

3

CUE

10

11

10

11

12

20ms

1.00 V
SPO

20ms

2.00 V
CLV+

50ms

1.00 V
SPO

50ms

2.00 V
CLV+

5s
100mV
SLD

PLAY

NORMAL DISC
TN0=01

PLAY

TCD-712 (140mm)
TN0=01

PLAY

TCD-712

0.5ms

10.0 V

6

JP+

0.5ms

7

10.0 V
JP-

0.5ms

8

0.50 V
JP

0.5ms

9

1.00 V
TE

50ms

10.0 V

6

JP+
50ms

10.0 V

7

JP­50ms

8

0.50 V
JP

50ms

9

1.00 V
TE

REVIEW

12

0.5s
100mV
SLD

1

1

– 18 –

TO MAIN SECTION

+B1

6

5

SW2

MECHA UP

SW3

9

8

GND (D)

MECHA UP

GND (D)

9

8

10 10

SW1

OPEN/CLOSE

DISC No.

7

5

6

DISK NO.

OPEN/CLOSE

GND (D)M–M+

7

5

6

M3

LOADING

M

3

4

3

4

SOLM1

2

1

GND (M)

2

1

CNS10

CNP10

CD-C449W/K449W

TO MAIN

SECTION

+5V

+5V

+B1

Q1 Q52

XL1

IC81

8

Q91

LCHO

RCHO

40

37

31

XVDD
RVDD

LVDD

VDD

VVDD

DOUT

4144

6

27

CONT4

24

CONT1

IC2

XOUT

XIN

64 45 3623 43

VCC1

LC78622K

CONTROL

SERVO/SIGNAL

EFMO

EFMIN

CLV+

JP–

~

9

101220

~

324043

JP–

CV+

SLC

44

SL1

IC1

LA9241M

62

LD0

SERVO AMP.

FIN2

FIN1EF

2

3

1

4

3

DRIVER

TA7291S

LORDING MOTOR

1

9

25

CONT2

265853

~

RES. CQCK. COIN

SQOUT. RWC. WRQ

CE

5352515431302923271615

DAT
CL

DRF
SL+
SL–

SLD
NC
SPO
FD
TO

+12V(+B5)

Q93

Q91

CL, DAT, SELIAL CONTROL/CE

SL+. SL–. DRF

3222

5

+B1

6

20

7

12

34

272628

29

IC3

DRIVER

M56748FP

242530

13

PU-IN SW

35

36

10 11

98

31

7

Q81 +7.3V (+B9)

REGULATOR

+4.3V

PICKUP UNIT

FOCUS COIL

TRACKING COIL

M1

M2

DISC

MOTOR

SLIDE

MOTOR

M

M

Figure 19 BLOCK DIAGRAM (1/3)

– 19 –

SW4

PICKUP IN

CD-C449W/K449W

U

2

5

DO

7

A

DI

D

FM BAND

PASS FILTER

SO301

ANTENNA

TERMINAL

FM

GND
SW1

SW2

MW

T302

MW ANT.

BFT01

231

MW OSC.

T306

1

TA7358AP

FM FRONT END

38

5

LT01

SW1/SW2
ANT.

T303
T304

Q308
Q309

ICT01

FM

RF

LT02

T307
T308

FM

OSC

SW1/SW2
OSC.

QT01

Q306
Q307

7

6

9

AMP

SW1 +B
SW2 +B

FM +B

MW +B

FM IF
TT01

Q360
Q361

Q362

FMOSC

+B7

+B7

FM IF
CF302

FM IF IN

VR351

FM MUTE LEVEL

X352

4.5MHz

FM

7

20

+B7

Q363

+B7

AM IF

T351

321
REGOUT

FM IF DET./FM MPX./AM IF

AM OSC

IN

AFC

OUT

AM IN

AM IN

1

OSC

LC72131

PLL CONTROLLER

9

+B7

Q364

AM RF IN

FM IN

IC302

CE

AM IF
CF352

IC303

LA1832

7

STEREO

43

DI

FM MONO/ST MONO/ST

1011161522

6

5

CL

DO

4
IN

IF OUT

IF IN

2113

FM IF

CF351

GND

VOLTAGE

REGURATER

+B7

+12V

1712

VCC

+B7

X351

456KHz

17

16

18

985

OUT

IN

SD

1561412101321222324

RL

MUTING

Q361

8

Q353
Q354

ICH11(1/2)

+B7

8

6

1

7

-B6

4
2

TUNER SD

T1 RUN

T2 RUN
T2 A FP
T2 B FP
T1 CrO
T2 CrO
CAM-SW

TAPE SOL

TA MOT

HIGH SP

FR SP

BEAT–CUT

TA R/P

REC MUT

T1/T2

PB MUTE

BIAS

2

2

TUNER

29
30
31
32
33
34
35
36
37
38
39
40
41
42

44
45
46

FROM CD UNIT

JR11

VCR/AUX1

L

L

JR12

VCR/AUX2

SWM3
REC FWD

SWM6
CAM SW

SWM5
F.A.S.

SWM4
REC RVS

SWM1
T1 CrO2

SWM2
T2 CrO2

SOLM1
SOLENOID

TAPE 1

TAPE 2

QG05

CD MUTE

QU02
QU01

CD

L

55
57

TUNER

AUX1RL

AUX2

R

L

54
58

R

51
61

52

L

IN

J602

MIC2

J602

MIC1

Vref RVrefLVref

R

17
18

L

VOLTAGE
REGULATOR

2722

1

6

31

VOLUME

QS11

+B7

60

R

+B6

R

R

14

QK17
QK18

MUTING
REC MUTE

QK21
QK22

MUTING

SWITCHING

QK15
QK16

QK19

REC/PB

BAIS

QK24

TAPE

T1/T2

BAIS

QK26

PB HEAD

L-CH
R-CH

REC/PB
HEAD
L-CH
R-CH

ERASE

HEAD

MOTOR

MM1

P.B

AC BIAS

REC

M

PHM1

MOTOR
DRIVER

P.B

QK03
QK04

QL14

+B6

REC/PB

QK05
QK06

QK09

QK10

+B2

QL15
QL19

DRIVER

QK07
QK08

QK11

DRIVER

DRIVER

POP REDUCE

TA MOT SW

QL18

QL17

QL11

SWITCHING

QL13

QL12

QL16

AN7345K

PLAYBACK AND RECORD AMP

L(T1)

1

P.B.

24

R(T1)

L(T2)

2

23

R(T2)

L NF

3

R NF

4

T1/T2

6

REC

L REC

9

16

R REC

REF

14
13

+B7

NOR/
HIGH

T1/T2

12

15

QK28
LK04

HI SPEED

TA MOT H/L

T2_RUN

T2_A_FP

CAM SW

T1/T2 CrO 2

T1/T2 PLAY

T2 F-REC

T2 R-REC

SOLENOID

ICK01

P.B

4

L

21

R

5

20

H/N

L RREC

7

18

8

17

ALC

10

19

L NF
R NF

HI SPEED

PB MUTE

SWITCHING

SWITCHING SWITCHING

TA–PB–EQ

3414

ICU01

LC75396N

AUDIO PROCESSOR

GRAPHIC EQUALIZER

45

10

42

7

39

21

4

Q631

VOLTAGE

REGULATOR

19 18

VCCMIC

IN

MIC2 IN

M65845FP

MIC AMP.

MIC SW

MIC1

VOL IN

VOL IN

5

VR602

VR601

MIC2

VOLUME

ICS01

SRS5250AS

SRS

11

10

1

QS16

SWITCHING

46

11

43

8

40

5

37

2

LR LR

+B7

IC601

MIC2

10 2

MIC2

25

24

QS17
QS18

47
44
41
38

GND

ECHO

VOL IN

DIGITAL

VOL

28
27

26

43

12

12

9
6
3

AU

VR6

R
L
P

SW

Figure 20 BLOCK DIAGRAM (2/3)

– 20 –

CD-C449W/K449W

1

FD01 FL DISPLAY

5

43

~

~~~

ICD01

IX0243AW

907246188915

+B2

+5V

UNSWITCH
+B2

+B3

14

SWD01

JOG DIAL

7573715150474533

21

~

26

27

SWD02

JOG DIAL

TO CD UNIT

DS RES

10

DAT

7

SCK

8

STB

9

VDD

VSS

LEDD23~LEDD28

99

5
3

4

11

100

2

1
14
13
18
56
90
15
57

89
12
16

17
27

93
91
92

LEDD01~LEDD21

TUNER MUTE

TUNER SD

COM

DATA

SCK

PROT

8

797527 504947456265636461818768

POWER

S-MUTE

679

AMP

STB

FRNT RLY

FAN CONT

~

70

2
2

29
30
31
32
33
34
35
36
37
38
39
40
41
42

44
45
46

43

72

71

DI

DO

58 23 19

IX0235AW

SYSTEM CONTROL

MICROCOMPUTER

69

CL

CE

MIC_DET

CD MUTE

VOICE CAN

ICF01

SRS B

SRS A

SRS IN H

SRS PASS

82 24

H/P SW

POSISTOR

FAN

T1 RUN

T2 RUN
T2 A FP
T2 B FP
T1 CrO

T2 CrO

CAM-SW

TAPE SOL

TA MOT

HIGH SP

FR SP

6

BIAS

BEAT–CUT

TA R/P

REC MUT

T1/T2

PB MUTE

TA–PB–EQ

RXD01

REMOTE

CONTROL

SENSOR

RES
CQCK
COIN

SQ OUT

WRQ
RWC
CD SL+
CD SL­CD-PUIN
CD-DRF

+B4 (5V BACK UP)

+B4

RESET

RESET IN

OSC
XF0201

4.19MHz

SYSTEM STOP
CD O/C

CD U/D
CD DNO

1

DATA1

COM1

QG01

SCK1

STB

+B6

29

95
96
97

1

+B3

QG02
QG03
ZDF01

P.FAIL DET

~

FL DRIVER &

CONTROLLER

VSS

MEMORY

F2

F1

KEY INVDD

VF1 (AC)

2
3

62
63

VF2 (AC)

64

KEY MATRIX

SWD01~SWD03
SWD07~SWD18
SWD21~SWD22
SWD30~SWD43
SWD48
SWD50~SWD54
SWD49(CD-K449W ONLY)

ICU01

LC75396N

UDIO PROCESSOR

GRAPHIC EQUALIZER

46

45

11

10

43

42

RVref

IN

W

MIC1

OL IN

2
2
ME

SRS5250AS

7

39

4

Q631

VOLTAGE

REGULATOR

19 18

VCC

IC601

M65845FP

MIC AMP.

MIC2

VOL IN

10 25

VR601

MIC2

VOLUME

ICS01

SRS

11

10

QS16

SWITCHING

8

40

5

37

2

LR LR

+B7

25

24

QS17
QS18

CE

CL

DI

25232434

VOLUME

47

12

12

44

OUT

9

41

48

6

63

38

3

LR

GND

AUD SW

ECHO
VOL IN

VR603

DIGITAL ECHO

VOLUME

R

28
27

L
PASS/SRS STEREO/SRS MONO

26

SWITCHING

OUT

IN

26
27
33
34

L

29
28

R

SWITCHING

QS14

CD-K449W

Vss

VDD

5521

+B7

ONLY

SRS PASS/3D

SRS A/SRS B

SRS IN H

+B6

FAN

QV20
QN21

F992

T1.6A L 250V

+
–
–
+

F991

T1.6A L 250V

AC POWER
SUPPLY CORD
AC 110/127/220
230–240V
50/60HZ

MOTOR

M

J901
HEADPHONES

L-CH
GND
GND
R-CH

SW991

VOLTAGE

SELECTOR

F990
T3.15A L 250V

TMV01
SPEAKER
TERMINALS

FAN MOTOR

POSISTOR

5

D991

15

FAN

H/P SW
FAN CONT
RELAY
PROT

L-OUT

7
6

R-OUT

D992~D995

PROTECTION

VOLTAGE

REGULATOR

PROTECTION

QV13
QV14

F997

T2A L 250V

Q951

VP VF2

VF1

(AC)

(AC)

POWER ON/STB
SWITCHING

POWER

QV16
QV17

AMP

Q914

T5mA L 250V

F999

Q907

L-IN
R-IN

14

ICV01

10

STK40709
POWER AMP.

VH+

VH-

9

3

2

1

–B1

+B1

ICP11

NJM4565M

BUFFER AMP.

OUT

L

31
17

R

26

IN

L

5
3

R

TO CD UNIT

–B6

8

4

+B2

+B6

+B7

+B9

–B6

OUT

L

7
1

R

+12V(MOTOR)

+12V(ANALOG)

+7.3V(CD)

+B7

REGULATER

–15V

+4.6V
UN-SWITCHED

VOLTAGE

REGULATOR

S-MUTE

QP11
QP12

VOLTAGE

VOLTAGE

REGULATER

VOLTAGE

REGULATOR

SWITCHING

VOLTAGE

REGULATOR

Q903

Q902
Q901

Q906
Q905

Q904

Q908
Q908

RELAY DRIVER

QV19QV18

T991

POWER

TRANSFORMER

CONTROL

QV22

RLYV11
RELAY

T.F

230~240V

220V
127V
110V

Figure 21 BLOCK DIAGRAM (3/3)

– 21 –

CD-C449W/K449W

4

R2
1K

C1

A

CNS1B

K
E
A

B

B
F

CNS1A

5
4

1

3

2

2

3

1

4
5

C

LD

MON

K
E
B

LD

GND

A
F

2200P

C

LT0H30M1

D

ACTUATOR

1M
2200P

1M

TR+
FO+

FO–
TR–

K

5

E

4
3

A

2

B

1

F

TR–

1

TR+

2

FO+

3

FO–

4

GND

5

PD

6

VR

7

LD

8

C15

47/16

0.01

CNP1

K

1

A

2

B

3
4

E

5

F

C2

0.01

C85

0.001

C4 0.1/50

TE

C54

0.001

R13 1K

R14 27K

C12

0.1

2.2K
R11

6.8K

R10

R12
100

R22
22K

0V

R9

0.047

C9

R15
12K

100K

0.033

R21

5V

Q1
KTA1266

C5

0.033
C6

C8 0.068

C10

180P

R16

3.3K

R20

22K

R8

15K

C7

0.1/50

1K

PICKUP UNIT

E

F

SPINDLE

PICKUP UNIT

M1

MOTOR

M2

SLED

MOTOR

SW4

M

M

+

–

+
–

TR–
TR+
FO+
FO–

GND

PD
VR
LD

CNP3A

6

5

4

3
2
1

CNS2B

1
2
3
4
5
6
7
8

CNS3B

6

5

4

3
2
1

1
2
3

4

5
6
7

8

CNS2A

TR–
TR+
FO+
FO–

GND

PD
VR
LD

CNS3A

6

5
4
3
2
1

CNP2

1
2
3
4
5
6
7
8

CNP3

6
5
4
3
2
1

SP+
SP–
SL+
SL–
PU-IN

R1
10

2.5V

2.5V

2.5V

2.5V

2.5V

2.5V

2.5V

2.5V

2.5V

2.5V

2.5V

2.5V

2.5V

2.5V

2.5V

2.5V

C36

100/16

+B

C3
1/50

5V

64

VCC1

FIN2

1
2

REF

FIN1

REF

E

3
4

F
TB

REF

5

TE–

6

TE

7

REF

8

TESI

9

REF

SCI

10

TH
TA

11
12

TD–
TD

13

+

–

GEN

REF

JP

14

+

–

TO

15

16

FD

R17 33K

C11

0.1

R18 15K

R19
1K

VREF

2.5V

1

2.5V

2

0V

3

2.5V

4

2.5V

5

2V

6

2V

7

0V

8

0V

9

0V

10

0V

11

2V

12

2V

13

2.5V

14

2.5V
15

0V

16

4.7V

17

0V

/SPIN/SLIDE DRIVER

R46
560

4.2V

0V

2.2V

61 62 63

LDS

BHI

LDO

–
+

–

RF

+

–

–

+

+

+
–

HIST.COMP

SHOCK;WCOMP

REF

REF

+
–

+
–

+

–

IC3 M56748FP

FOCUS/TRACKING

FE1
REF

–

VCR

+

–
+

R23
10K

–
+

VCR

BAL

+

–

REF

+
–

WCOMP

JP

+–

REF

FSC

TO

GEN

+

REF

–

+
–

GEN

REF

+
–

1CH

CH2

FD–

17

18 19

2.5V

R24
47K

STAND

BY

TSD

+

–

FA

2.5V

FA–

20 21

2.5V

R25

1.5K

C34 0.33/50

C33 0.47/50

1V

1V

59

60

PHI

REF

VCR

+
–

VCR

IC1
LA9241M
SERVO AMP.

REF

TGL1

GL

THDL

THD

REF

REF

–

+

FOF

REF

SP

AGND

FE

FE–

23

22

2.5V

0V

2.5V

C13

330P

C16

R26
82K

R27 39K

C14

0.01

0V

36

0V

35

0V

34

2.5V

33

+

2.5V

-

32

1.8V

31

1.8V

30

0V

29

0V

28

0V

27

0V

26

2V

25

2V

CH3 CH4

24

2.5V

23

2.5V

–

22

2.5V

+

21

4.7V

20
19

0.7V

C32 0.01

2.5V

58

LF2

+

–
–

+

VCC

+

-

+

­PSTR

S.Q.R

+

–

+

–

SPOF

SPI

24

2.5V

0.0047

C30 0.1/50

C31 220/6.3

2.5V

57

VCC

VR

REFI
+
–

DEF

HFL

DRF

REF

JP

REF

10

SPG

25 26

2.5V

2.5V

0.001

R28 10K

6.8K

R29 56K

R31

1.2K

C18

0.47/50

R48
10K

C17

R30

SP–

5V

56

+

–

27

VCC2

+
–

SPO

0V

0V

53

54 55

FSS

DRF

FEBAL
FOSTA
TOSTA

2FREQ
LASER
FSTA
8/12CM
SLOF

JP–

JP+
CV–

CV+

REF

TO

SLEO

28

2.5V

R32 10K

C19 1/50

4V4V0V

52

CE

DAT

SLOF

SLOF

OR

SLOF

REF

SLD

29

2.5V

2.5V

C20

47/16

R33 1.2K

R34 22K

2.4V

CL

CLK
CE

CL

DAT

LATCH

P-ON RES

REF

RF

+
–

C21

CLK

0V

49 50 51

DEF

THLD

REF

SLC

+

–

+
–

SL–

SL+

30

31 32

2.5V

2.5V

0.0033

R35 220K

DGND

RFSM

R36

RFS–

SLOF

TOFF

R37
82K

TBC
FSC

+

CV+
CV–

HFL
TES

TGL

JP+

JP–

0V

220K

NC

46

SLI

–

40

R45

4.7K

C29

4.7/50

0V

48
47

2.5V

0V

45

2.5V

44

C27

0.001

2.5V

43

R40

5.6K

2.5V

42

C24

2.2P

41

1.6V
0V

HF

0V

39

5V

38

0V

37

0V

36

5V

35

5V

34

0V

33

GND

C35
1/50

1SS133

D2

RL104AD3RL104A

D1

C26

0.033

R41
47K

C25
27P

R43
56K

R38
470

C28

0.1

R44
33K

R42
47K

R39

1K
C23

0.0027

C22
220P

RL10

D4

CD MOTOR PWB-K

G

H

• NOTES ON SCHEMATIC DIAGRAM can be found on page 17.

1

23456

Figure 22 SCHEMATIC DIAGRAM (1/15)

– 22 –

CD-C449W/K449W

/50

.6K

9

40

HF

1SS133

D1

C26

0.033
R41

47K

C25
27P

R43
56K

R38
470

C28

0.1

R44
33K

R42
47K

R39

1K

C23

0.0027

C22
220P

C57

0.001

R93@220

D82

1SS133

C83

0.022

L61

0.82µH

C41
12P

C42
15P

10/50
C43

330/6.3

10/50

100/16

CD SIGNAL

XL1

16.934MHz

D81
1SS133

R72

C72

2.7K
R71

2.7K

C71

Q52

KTC3203 Y

C51

C52 100/16

+B

R74

C74

560

0.001

R73

C73

560

0.001

R66

R64

330

22

ZD61

MTZJ4.7B

+B

+B

+B

CNP11

1

CD R-CH
GND(AU)

2

CD L-CH

3

GND(CD)

4

+7.3V

5

+B

12V(M)

6

BI99

1

1

2

2

3

3

CNSF11

FROM MAIN PWB

P24 1-B

CNP99

DOUT
+4.3V
GND

TO MAIN PWB

CNPR11

P27 12-D

+B

R57 1K
R58 1K
R59 1K
R60 1K
R61 1K
R62 1K
R63 1K

C38

C39

0.047

C56

R50
680

R51 3.3M

C40

0.047
R52

27K

R53

1.2K

0.022

2.5V

2.5V

0.01

TEST1

0V

DEFI

1

2

TA1

0V

3

PDO

0V

4

VVSS

0V

5

ISET

2.2V

5V

VVDD

6
7

1V

FR

0V

VSS

8

EFMO

9

EFMIN

10

0V

11

TEST2
CLV+

0V

12

0V

CLV–

13

5V

14

V/P

15

HFL

16

TES

63 64

60 61 62

58 59

4M

/CS

16M

TST11

TEST5

IC2
LC78622K
SERVO/SIGNAL
CONTROL

VCO CLOCK

OSC CONTROL

SLICE LEVEL

CONTROL

CLV

DIGITAL SERVO

SERVO

COMMAND

TOFF

JP+

TGL

JP–

PCK

FSEQ

19

17 18

20

22 23

21

+B

55

56 57

/RES

COIN

/CQCK

µ-COM

INTERFACE

2K x8BIT

RAM

ERROR CORRECT

FLAG CONTROL

SYNC-DETECT

EFM DEMODULATE

VDD

CONT1

24 25

R88 1K

54

RWC

SQOUT

EXTERNAL

OUTPUT

CONT3

CONT2

26

R90 1K

R89 1K

C46 100P

C45 100P

C44 100P

FSX

WRQ

SUB-CODE

X-TAL

GENERATOR

4FS

DIGITAL

FILTER

EMPH

C2F

CONT5

CONT4

27

28 29 30 31 32

Q51

KRC107 M

3

2

1

C49 100P

C48 100P

C47 100P

49 50 51 52 53

PW

SFSY

SBCK

1BIT
DAC

DIGITAL

OUT

DOUT

TEST3

EFLG

SBSY
XVSS

XOUT

XVDD

MUTER

RVDD
RCHO

RVSS
LVSS

LCHO
LVDD

MUTEL

PCCL

TEST4

R54

48
47

46

XIN

45
44
43

C53

0.022

42
41
40
39
38

37
36
35
34
33

R55 150

330

C50

3.3/16

D3

RL104A

D4

RL104A

R47
10K

C37

0.022

CNP12

3

4

5

1

2

RWC (DSP)

WRQ (DSP)

COIN (DSP)

CQCK (DSP)

SQ_OUT (DSP)

FROM MAIN PWB

+B

10

8

9

7

6

SL+

DRF

GND(D)

RES (DSP)

CNSF12

P24 1-D

IC81

TA7291S

LOADING

MOTOR DRIVER

1 2 3 4

5

0V

0V

1V

6.4V

6.5V

R83

C82

3.9K

47/16

11 121314

SL–

PIUN

DISC NO.

MECHA UP

OPEN/CLOSE

R80

R81

6.8K

3.9K

Q91

KTA1271 Y

R87

Q93

8

6

9

7

0V

6.5V

2.9V

6.5V

R82

6.8K

C81

47/16

R85

56

KRC102 M

3

1

10K

2

R86

2.2K

D91
1SS133

+B

CNP10

CNS10 1 BIM05

SOL

1
2
3
4
5
6
7
8
9

10 10

GND(M)
M–
M+
GND(D)

OPEN
/CLOSE

DISC NO.
GND(D)
MECHA UP
GND(D)
GND(D)

1
2
3
4
5
6
7
8
9

2
3
4
5
6

1 2 1

CNS5

–
+

2

SOLENOID2

M3 T/T
UP/DOWN
LOADING

M

MOTOR
SW1
OPEN
CLOSE

SENSOR PWB-J

SW2

MECHA UP

SW3

DISC NUMBER

LOCK

CD SERVO PWB-B

• The numbers 1 to 12 are waveform numbers shown in page 18.

7

8 9 10 11 12

Figure 23 SCHEMATIC DIAGRAM (2/15)

– 23 –

CD-C449W/K449W

µ

C

L

T

(

O

S
S
S
S

Y

T

U

CNPF01

10

GND(D)

9

GND(D)

8

+4.6V(D)

7

+12V(M)

A

TO DISPLAY PWB

TO CD SERVO PWB

B

C

TO CD SERVO PWB

D

E

F

G

H

CNSD01

P30 1-D

CNP11

P23 11-C

CNP12

P23 8-H

CL

(µCON SIDE DI)

CE(CE1)

(µCON SIDE DO)

CNP303

TO TUNER PWB

P33 11-H

6

COM1

5

RESET

4

DATA1

3

STB

2

SCK1

1

CNSF11

CD R-CH

1
2

GND(Au)

3

CD L-CH

4

GND(CD)

5

+7.3V(CD)

6

+12V(M)

RWC

1

WRQ

2

COIN

3

SQOUT

4

CQCK

5

RES

6

DRF

7

D2GND

8

SLD+

9

SLD–

10

PUIN

11

OP/CL

12

DISC2NO

13
14

UP/DOWN

CNSF12

GND(D)

1
2

DO

3
4

DI

5
6

+12V(A)
GND(A)

7
8

TUN MUTE

9

L-CH

10

R-CH

CNSF13

M +12V

M_GND

TA_FR SPEED

TA_MOT_SW

TA_SOL

T2_A_FP

TA_CAM_SW

T1_RUN

P29 12-C

T2_RUN

T2_B_FP

T1_CRO2

MECHA SECTION

T2_CRO2

TA_T1/T2

PB_MUT
TA_BIAS

HIGH_SP

TA_R/P

REC_MUT

TA_PB-EQ

GND(BIAS)

P29 12-D

+12V(A)

GND(A)

DECK SECTION

REC L-CH

REC R-CH

PRE L-CH

PRE R-CH

BIF11

1
2
3
4
5
6

1
2
3
4
5
6
7
8
9

10
11
12
13
14

BIF12

1
2
3
4
5
6
7
8
9

10
1111

BIF13

1
2
3
4
5
6
7
8
9

10
11
12

13
14
15
16
17
18
19

20
21
22
23
24
25
26

+B
+B

0V

QG04
KTA1266 GR

4.1V

3.8V

RG10

RU95

2.2K

0V

QU02

KTC3199 GR

0V

+B

0V

+12V(A)

GND(A)

GND(CD2)
GND(CD1)
GND(D)
+7.3V(CD)
+12V(M)
+4.6V(D)

CG07
22/25

47K

RU96

2.2K

0V

0V

QU01

0V

KTC3199 GR

RG24 10K

RG08 10K

+B

RG57 10K
RG58 10K
RG59 10K

CD-C449W

ONLY

+B
+B
+B

CD-K449W

ONLY

RG23

10K

RF87

RF94 1K
RF95 1K
RF96 1K

DG06
1SS133

SELECTOR

RF81
RF82 1K

47K

RF91

RF97 1K

10/100

SWF02

SPAN

9/50

MIC_DET

1K

H/P SW

SRS_A/NA
DOL_A/NA

S.W_ANA

47K

47K

RF92

CD UP/DOWN SW

CD DISC No.SW

CD OP/CL SW

CD MUTE

RG05

RF80

S/N

VSS

VDD

CD RES

RF98 1K

10K

1K

RWC

RG56 1K

81
82
83

84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100

RF79 1K

9K/10K

POWER

79 78

80

PL6

PF7

(4.0V)

(4.0V)

PL1 (0V)
PL2 (4.0V)
PL3 (4.0V)
P30
P31
VSS3
VDD3
P32
P33 (4.0V)
P34
P35
P00
P01
P02 (8.8V)

(0V)

P06 (0V)

P07

1

2

SLD–

SLD+

RF01 1K

RF02 1K

RF77 22K

CENT MUTE

77

PF6

(3.8V)

(0V)

(4.0V)
Si0

SO0

4

3

COIN

SQOUT

RF03 1K

RF04 1K

RF76 1K

RF75 1K

RF73 100

RF71 1K

RF72 1K

REAR MUTE

SYS MUTE

TUN_MUTE

74

73

72

76

PF5

(4.0V)

71

7

5

PF0

PF4

PF3

PF2

PF1

(0V)

(4.0V)

(3.8V)

(3.8V)

PL5 (0V)

81

PL4 (0V)

82

PL0 (0V)

83

SYSTEM CONTROL

MICROCOMPUTER

98

P03 (4.0V)
P04

99
100

P05 (0V)

(4.0V)

(4.0V)

(0V)

(0.6V)

(0V)

SCK1

SCK

SI1

P16

SO1

8

9

6

10

5

7

STB

DAT

COM

RF06 1K

DS_RES

SCK

RF09 1K

RF10 1K

RF08 1K

RF07 1K

CQCK

RF05 1K

RF70 1K

RF69 1K

RF68 1K

CE

SDDIDO

CL

706968

PE7

PE6

PE5

(0V)

(4.0V)

(4.0V)

IX0235AW

(4.0V)

(0V)

(4.0V)
P17

INT0

RES(MAIN)

13

12

11

WRQ

DRF

RES

RF12 1K

RF13 1K

RF11 1K

RG11

10K

RF67 1K

ENA

67

66

PE4

PE3

(0V)

(4.0V)

ICF01

(0V)

(0.4V)
P75

P74

14

15

VSS

PUIN

RF14 1K

CG05

10K

RG04

+B

CD-K449W

ONLY

RF65 1K

RF64 1K

65

64

PE2

PE1

PE0

(0V)

(2.0V)

(1.7V)

CF2

VSS1

CF1

16

17

CF2

CF1

XF01

15P

CG06

RF63 1K

B

636261

PD7
(0V)

(4.0V)

VDD1

18

19

VDD

RF17 820

15P

CG61

0.022

RF62 1K

RF61
22K

PASS

60

PD5 (DI)

PD6

(3.6V)

(0.4V)

(0.4V)
AN0

AN1

2120

SP_4KHz

SP_1KHz

RF20 1K

RF19 1K

RG38
100K

59

58

PD4

PD3
(DO)

50
49
48

33
32
31

(0.4V)

(0.4V)

AN2

AN3

23

22

SP_16K

SP_63Hz

SP_250Hz

RF231KRF22 1K

RF21 1K

RG25

10K

VSS

VDD

56

57

PD2

VSS2
(0V)

PC4 (4.0V)
PC3

PC2

PA3 (4.0V)
PA2 (4.0V)
PA1 (4.0V)

(0.4V)

(0V)

AN4

AN5

25

24

TUN_SM

POSISTOR

10K

RF25 1K

RF24

55

PD1

VDD2

(8.0V)

(0V)

(0V)

AN6

AN7

26

SP LEVEL

RF26 1K

RF53

47K

54 53

PD0

PC7

(8.0V)

(4.0V)

4SP2A/NA

(4.0V)

(3.8V) PB6

(4.0V) PB4

(0V) PB3
(0V) PB2

(4.0V) PB1

(4.0V) PA7

(0V) PA6
(4.0V) PA5
(4.0V) PA4

(4.0V)

(4.0V)

INT1

INT2

27

28

SP PROT

SYS_STOP

1K

1K

RF28

RF27

52

29

+4V(µ-

GND(

RF52

1K

CENT/REAR RLY

51

FRNT_RL

50

PC5

PC6

FAN CON

49
48

(4.0V)

AMP

47

PC1

PB_MUT

46

PC0

TA_T1/T2

45

PB7

REC_MU

44
43

PB5

TA_R/P

42

BEAT_C

41

TA_BIAS

40

FR SPEED

39

HIGH_SP

38

PB0

TA MOT

37

TAPE_SO

36

CAM_SW

35

T2_CRO

34

T1_CRO

33

T2_B-FP

(0V)

(4.0V)

32

T2_A-FP

31

PA0

INT3

30

RF30

1K

T1_RUN

T2_RUN

RG16

47K

RG19
47K

RF29 1K

RG26

10K

GND(A)

CH28

0.022

ICH11

NJM4558M

MOTOR
DRIVER

RH17

1.5K

RH20

1.5K

RH25

1.5K

RH30

1.5K

RH35

1.5K

+12V(A)
–15V

+B+B

+B

CH30

0.0056
+B

CH17

0.047

CH16
1/50

+B

CH20

0.015

CH19

0.47/50
+B

CH23

0.0047

CH22

0.1

+B

CH26

0.0012

CH25

0.027

–B

RH11

22K

12.5V

RH14
560K

RH15
33K

RH21
560K

RH22
33K

RH26
560K

RH27
33K

RH31
560K

RH32
33K

RH36
560K

RH37
33K

8

4

-11.9V

RH12

1K

0V

1

CH10

47P

DH11

1SS133

CH15

0.22/50

DH12

1SS133

CH18

0.22/50

DH13

1SS133

CH21

0.22/50

DH14

1SS133

CH24

0.22/50

DH15

1SS133

CH27

0.22/50

0V

2

–

(1/2)

3

+

0V

CH13

330P

RH13

0V

820K

–

6

(2/2)

7

0V

+

5

0V

DH16
1SS133

16KHz

SPE-1

RH16
470K

DH17
1SS133

63Hz

SPE-2

RH24
470K

DH18
1SS133

250Hz
SPE-3

RH29
470K

DH19
1SS133

1KHz

SPE-4

RH34
470K

DH20
1SS133

4KHz

SPE-5

RH39
470K

REC L-CH
REC R-CH
PRE L-CH
PRE R-CH

GND(A)

CH12
10/16

TUN L

TUN R

+B

RG01
220K

CG08

0.001

+B

CH29

0.022

+B

+B

+B

• NOTES ON SCHEMATIC DIAGRAM can be found on page 17.

1

23456

Figure 24 SCHEMATIC DIAGRAM (3/15)

– 24 –

CD-C449W/K449W

+4V(µ-CON)

GND(µ-CON)

NT_RLY

N CONT

MP

B_MUT

_T1/T2

EC_MUT

_R/P

EAT_CUT

_BIAS

SPEED(M)

IGH_SP

MOTOR

PE_SOL

AM_SW

_CRO S
_CRO S
_B-FP S
_A-FP S

6

RF50 1K
RF49 1K

RF47 1K
RF46 1K
RG55 1K
RF44 1K

RF42 1K
RF41 1K
RF40 1K
RF39 1K
RF38 1K
RF37 1K
RF36 1K
RF35 1K
RF34 1K
RF33 1K
RF32 1K
RF31 1K

RG17
RG20
RG21
RG22

RG15
10K

+4V

10K
10K
10K
10K

QG05

KRC104 M

4.1V

0V

RF99
10K

CD GND(D2)
CD GND(D1)
GND(D)

RG37

1K

DG05

1SS133

CG04

0.01

LG01

2.2µH

QG01

KRC102 M

4.0V

2

1

3.3K

RG36

+4V

+7.3V(CD)
+12V(M)

+4.6V(D)

QG03

4.0V

RG33
10K

0.4V

RG32

100

DG03

1SS133

ZDF01

RG31
1K

MTZJ3.3A

QG02
KTC3199 GR

CG03

RG35

1K

3.3/50

3

0V

4.0V

RG34

0V

DG04

1SS133

CG02

0.01

0V

RG39

82

+B

10K

0V

KTC3199 GR

0V

–B

DG02

RG30

150

1SS133

RG29

150

+B

+B

RESET
POINT

CG01

470/10

+B

+B
–B

FM SIGNAL

0V

PLAYBACK SIGNAL
RECORD SIGNAL

CD-C449W
ONLY

CD SIGNAL

CD GND(D2)

36

CD GND(D1)

37

GND(D)

38
39

+7.3V(CD)
+12V(M)

40

+4.6V(D)

41

42

AMP
S-MUTE

43
44

SP PROT

45

POSISTOR

46

H/P SW
SP LEVEL

47

FAN CONT

48
49

FRNT RLY(1)
POWER

50

CL

51

DI

52
53

CE
GND(M)

54
55

+12V(A)
–12V

56

GND(BIAS)

57

GND(A)

58

GND(D3)

59

60

OUT(L)

61

OUT(R)

62

IN(L)

63

IN(R)

64

GND(A)
+12V(A)

65
66

PASS

67

SRS A

68

SRS B

69

SRS INH

P27 8-H

PRE SECTION

P26 1-B

PRE SECTION

CG57

47/25

CG56

0.022

26

+12V(A)

+B
–B

AUX 2

RU93

RU94

1K

31

CU45

1/50

CU57

2.2/50

RU03

RU05

15K

2.7K
CU11

100P

49

LSELO
(5.0V)

2.2/50

CU35
CU07
CU05
CU03
CU01

1K

CU02
CU04
CU06
CU08
CU36

32

2.2/50

2.2/50

2.2/50

2.2/50

2.2/50

2.2/50

2.2/50

2.2/50

2.2/50

CU46
1/50

CU12
100P

RU04 15K

RU06

2.7K
CU10

10/50

50
51
52

53
54
55
56
57
58
59
60
61
62
63
64

L5
L4
L3
L2
L1
VDD
R1
R2
R3
R4

R5

RINVIN1
(5.0V)

RSERO
(5.0V)

RTIN
(5.0V)

CU16

0.47/50

CU09
10/50

CU58

2.2/50

27

28

30

29

(5.0V)
(5.0V)
(5.0V)
(5.0V)
(5.0V)
(10.1V)
(5.0V)

(5.0V)
(5.0V)
(5.0V)
(5.0V)

48

LTIN

CU15

0.47/50

(5.0V)

RF1C1

(5.0V)

–15V

CU17

0.18

CU21

(ML)

0.22/50

43

44

46

45

47

LF1C3

LF2C1

LF1C1

LF1C2

(5.0V)

(5.0V)

(4.8V)

(5.0V)

AUDIO PROCESSOR

(5.0V)

(4.8V)

(0V)

(0V)

RF1C3

RF2C1

RF2C2

RF1C2

5

3

6

4

2 1

CU22

CU24

CU18

0.22/50
(ML)

0.15

CU64

0.022

0.18
(ML)

CU23

0.15

CU25

(ML)

0.22/50

42

41

LF2C2

LF2C3

LF3C1

(5.0V)

(4.8V)

(5.0V)

ICU01

LC75396N

(5.0V)

(5.0V)

(0V)

RF2C3

RF3C1

RF3C2

8

7

CU28

0.027

CU26

0.22/50

40

9

CU63
100/16

CU27

0.027

LF3C2

(5.0V)

(4.8V)

RF3C3

39

LF3C3

(4.8V)

(5.0V)

RF4C1

10

CU30

0.015

DU02

1SS133

RU21 1K
RU26 1K
RU25 1K

RU22

CU29

0.015

37

38

LF4C1

LF4C2

(5.0V)

(5.0V)

(5.0V)

(4.8V)

RF4C2

11

CU32

0.0022

DU01

1SS133

1K

RF4C3

CU34

0.0047

CU31

36 35

LF4C3

(4.8V)

(5.0V)

RF5

1312

0.0022

14

REC L-CH

REC R-CH

CU33

0.0047

34 33

LF5

LFIN

(5.0V)

LFCOM

LTOUT

LFOUT

(5.0V)

(5.0V)

(5.0V)

(5.0V)

LRCOM

LROUT

(5.0V)

(5.0V)
(0.1V)

(0V)

(CON SIDE DO)
(0V)

(0V)
(5.0V)
(0V)

(5.0V)

RROUT

RRCOM

(5.0V)

(5.0V)

(5.0V)

RFOUT

RTOUT

RFIN

RFCOM

16

15

CU41
10/50

CU40
10/50

RU02
470K

CU39
10/50

(5.0V)
(5.0V)

LRIN

LVref

RVref

(5.0V)

RRIN

(5.0V)

CU42
10/50

32

31

CU61

30

10/50

29

CU55

CU52

28

VSS

CE

DI
CL

Vref

22

20
19
18

(0V)

17

27
26
25
24
23

21

10/50

RU09 1K
RU10
RU11

CU62
10/50

CU43
47/16

1K
1K

CU51
10/50

47/16

RU14

CU56

1K

RU13

47/16

1K

RU01

470K

+B

33

34

35

MAIN PWB-A(1/ 4 )

CD-K449W
ONLY

RU23

RU24

1K

1K

CNPU02

1
2
3
4
5
6
7
8
9

V, CAN
OUT(L)

IN(L)
GND(A)
+12V(A)

OUT(R)
IN(R)
GND
MIC

FROM

KARAOKE PWB

P36 3-A
CNSU02

GND(A)

GND(A)

L-CH OUT

L-CH OUT

R-CH OUT

VIDEO2 IN VIDEO1 IN

TO PRE SECTION

P28 2 H

7

R-CH OUT

GND(A)

L-CH OUT

R-CH OUT

VOLUME

OUT

TO PRE SECTION

P28 6-H

8 9 10 11 12

Figure 25 SCHEMATIC DIAGRAM (4/15)

– 25 –

CD-C449W/K449W

S

4

R

M

A

3.7V

3

QS14

KRC107 M

0V

2

0V

1

RS33
100K

RS34
100K

CS11

2.2/50

CS12

2.2/50

B

C

D

E

IN(L)

IN(R)

OUT(L)

OUT(R)

GND(A)
+12V(A)

P25 12-C

SRS PASS

TO MAIN SECTION

SRS A

SRS B

SRS INH

60

61

62

63

64

+B

65

66
67

68

69

TO POWER PWB

P35 8-H
FW901

TO DISPLAY PWB

P30 1-B

FWD02

QS12

KRC107 M

0V

3
QS11
KRC107 M

1

0V

VF1

–38(VP)

VF2

VF2

–38(VP)

VF1

QS13

KRC107 M

12.5V

3

0V

2

0V

1

12.5V

0V

2

3

0V

1

2

1.9V

MAIN PWB-A(3/4)

WTP01
1
2
3

3
2
1

WTP02

RS20

10K

CS13

100/16

CS21

4.7/50

CS22

QS15

11.9V

12.5V

CS15

100/16

L CH

4.7/50

CS16

0.047
(ML)

KTC3203 Y

12.6V

RS22

10K

RS23

2.2K

RS18

10K

CS14

100/16

+B

+B

RP11

100

RP15

100K

RP16

100K

RP12

R CH

100

RS11

1K

RS12

5.9V

1K

28

R_IN

VCC

1234

11.9V

RS26

RS24

1.5K

22K

RS25

47K

CS17

0.47/50
(ML)

CP19

CP15

0.082

0.082

(ML)

(ML)

RP17

8.2K

47P

CP17

CP18

47P

RP18

8.2K

CP20

CP16

0.082

0.082

(ML)

(ML)

100K

RS14

4.7K

RS13

0V

5.9V

26

25

27

L_IN

MODE

C_OUT

PN_IN

C1

PN_OUT

5.9V

5.9V

RS29

33K

RS28
100K

CS18

0.0047
RS27

3.9K

ICP11

NJM4565M

BUFFER AMP.

+

5

0V

ICP11

(1/2)

–

6

0V

RP19

2.2K

RP20

2.2K

0V

–

2

ICP11

(2/2)

0V

+

3

5.9V

5.9V

C_IN

C2

5

11.8V

8

4

–11.2V

222324

CL3

CL4

ICS01

SRS5250AS

SRS

C4

C3

8

6

7

7

0V

RP25

1K

RP21

100

CP07

100P

CP08

100P

RP22

100

0V

1

RP26

1K

5.9V

CL2

CL1

C6

C5

10 11 12 13 14

9

5.9V

CP23
10/16

RP27

8.2K

RP28

8.2K

CP24

10/16

1K

RS15

18192021

Vref

L_OUT

S_OUT

S_IN

5.9V

RS30

4.7K

RS31

4.7K

+B

QP11
KTC3199 GR

0V

0V

CP25

CP26

0V

0V

QP12
KTC3199 GR

–B

5.9V

5.9V

17

CR4

CS19

0.33/50
RS32

1.5K

0.7V

0.001

0.001

0.7V

RS16
1K

R_OUT

RP30

5.6K

5.9V

CR1

CR3

5.9V

D

1SS133

1516

S
DS03

RP29

5.6K

0V

CP27

0.022

CP28

0.022

GND

CR2

QS16
2SK246 G

G

0V

2SK2

Q

JR12
L-CH

F

INPUT

VIDEO/AUX-2

INPUT

VIDEO/AUX-1

R-CH

JR11

L-CH

R-CH

G

CR10

0.001

CR13
390P

RR15

27K

RR16

27K

CR14

390P

CR11
390P

RR11

27K

RR12

27K

CR12
390P

DR12
1SS133

DR11

1SS133

TO MAIN SECTION

RR17

2.7K
RR18

2.7K

RR13

1.8K
RR14

1.8K

VIDEO-1

272829

R-CH

GND(A)

P25 7-H

H

• NOTES ON SCHEMATIC DIAGRAM can be found on page 17.

1

23456

Figure 26 SCHEMATIC DIAGRAM (5/15)

L-CH

VIDEO-2

R-CH

303132

L-CH

GND(A)

– 26 –

RP09

100K

34

35

GND(A)

L-CH IN

TO MAIN

SECTION

P25 10-H

RP10

100K

33

R-CH IN

S-MUTE

43

S-MUTE

RP73

22K

CP57
22/25

CS12

CP26

CP25

5

9V

2.2/50

CD-C449W/K449W

MAIN PWB-A(2/4)

RS16
1K

.

0V

5.9V

1516

17

CR1

GND

R_OUT

2SK246 GR

CR2

CR3

CR4

12 13 14

CS19

0.33/50
RS32

QS16

1.5K

5.9V

2SK246 GR

D

5.9V

P11

KTC3199 GR

0.7V

0.001

0.001

RP30

5.6K

0.7V

12

C3199 GR

S
DS03

1SS133

CP27

0.022

RP29

5.6K

CP28

0.022

G

0V

QS17

RS35

4.7K

100/16

100/16

5.9V

5.9V

CP09

CP10

D

S

RS36

5.9V

5.9V

0V

G

1SS133

1K

DS02

D

S

+B

QS18
2SK246 GR

G

0V

OUT1(Lch)

GND(A)

OUT2(Rch)

+B

DS01
1SS133

FM SIGNAL

DIGITAL-OUTPUT

1

ICR11

2

GP1F38T

3

CR02

100/10

CR01

0.022

RELAY2

OUT1(L-CH)

RELAY1

GND(A)

FAN CONT

OUT2(R-CH)

SP LEVEL

H/P SW

PROT

POSISTOR

AMP

LR0

2.2µH 1
(DH)

RR01

100

ZDR01
MTZJ3.3B

CR03

0.001

CFWP01

+B

3
2
1

1
2
3
4
5
6
7
8

9
10
11

12
13
14

CNPR11

DOUT
+4.3V
GND

FWP01

FROM CD SERVO PWB

P23 11-C

CNS99

OUT1(FRONT L-CH)
FRNT RLY(1)
GND(A)
FAN CONT
OUT2(FRONT R-CH)
SP LEVEL
GND(M)
H/P SW
+12V(M)
FAN SW

PROT
POSISTOR
AMP

TO SPEAKER AMP.PWB

P34 1-B

CFWV11

S-MUTE

43

S-MUTE

7

RP73

22K

CP57
22/25

RP32

150

(1/4)

–B

GND(D)

–12V

585638

GND(A)

55

RP31
150
(1/4)

+B

+12V(A)

CNPP01

0V

QP17

+12V(M)

–12V(A)

1

GND(A)

2

3

+12V(A)

4

+12V(M)

5

+B
+B

1

2

0V

6

7

8

9

10

11

GND(M)
+4.6V(D)
GND(D)
+7.3V(CD)
CD GND(D1)
POWER
GND(D3)

TO POWER PWB

P34 3-H
CNS901

–12V

+12V(A)

GND(D)

TO PRE SECTION

P25 12-A

SP LEVEL

FAN CONT

FRNT RLY(1)

PROT

H/P SW

AMP

+12V(M)

POSISTOR

GND(M)

+4.6V(D)

–B

+B
+B

+4.6V(D)

37395741544042454446474849

+7.3V(CD)

GND(BIAS)

CD GND(D1)

59 50

POWER

GND(D3)

3.7V

3

KRC107 M

8 9 10 11 12

Figure 27 SCHEMATIC DIAGRAM (6/15)

– 27 –

CD-C449W/K449W

M

A

TAPE MECHANISM ASSEMBLY

B

MOTOR

MM1

C

M

REC FWD

SOLM1

REC RVS

SWM3

SWM6

CAM SW

SWM5

F.A.S

SOL

SWM4

FWM2

TAPE MICHANISM PWB–H

L
H

+

VRM1

RM1

3.3K(B)

PHM1

2.7K

MOT+B

REC FWD

CAM SW

M2GND

RUN PULSE

REC RVS

2

F.A.S

SOL

PLAYBACK SIGNAL
RECORD SIGNAL

QL11

KTA1266 GR

0.26V

0.26V

RL13

6.8K

0.26V

KTA1266 GR

FWM1

L

1

1

H

2

3

4

5

6

7
8

+B

9

10
11
12
13

13

MOT L

MOT H
MOT +B
T2 A-FP

CUM SW

M2GND

T1 RUN-SW

T2 PH-OUT

+B

SOL

T2 B-FP

1

2

3
4
5
6

7

8

9

10
11
12
13

WTL11

DL13

1SS133

DL14

1SS133

QL12

0V

0.26V

0V

DGND

RL12

2.2K

RL11

33K

RL14

33K

CL12
47/16

DL12

0.26V

1SS133

QL14

KTA1273 Y

12.6V

QL15

KTA1271 Y

0V

12.6V

RL20

1.2K

12.6V

12.6V

RL15

10K

RL17

10(1/2W)
RL18

10K

RL16

2.2K

RL19

2.2K

QL13

KRC104 M

2

0V

1

QL17

KRC104 M

2 3

0V 4V

0V

1

3

3.8V

0V

12.5V

QL18

KRC104 M
2

0V

1

3

0V

D

E

F

G

TAPE2

RECORD/
PLAYBACK HEAD

R-CH L-CH

ERASE

HEAD

TAPE2 HEAD

PWB-G

TAPE1

PLAYBACK HEAD

L-CH

R-CH

1
2
3
4
5
6

BI102

CNSK01

2
1

7

6

5
4
3
2
1

CNSK02

3 3
2
1

CNPK01

7
6
5
4
3
2
1

CNPK02

CK05
330P

RK89

RK33

22K

QK13

RK01
CK01
680P

CK02

680P

0V

RK03

QK06

QK04

0V

0V

0V

0V

0V

REC

2.2K

0.7V

0.7V

RK05

3.3K

RK11

15K

RK12

15K

0.7V

RK06

3.3K

0.7V

RK04

2.2K

QK03

2SC1845 F

QK05

2SC1845 F

CK06

330P

RK90

1K

1K

2SC1845 F

2SC1845 F

1K

RK02

1K

QK07

KTC3199 GR

0V

RK09

4.7K

RK08

47K

0V

RK10

4.7K

KTC3199 GR

RK07

47K

QK08

RK19

CK15
47/16

CK11

RK17

1K

0V

CK07

0.001

0V

0V

CK08

0.001

0V

RK18

1K

330P

0V 0V

0V

CK13

330P

2

1

HIGH=T1

23

24

0V 0V 0.6V

CK12

CK14

330P

330P
CK16

47/16

RK20

PB EQ CrO2

9.1V 9.2V

QK09

KTA1266GR

0V

REC

RK13

10K

CK09

0.022
RK14

10K

REC

0V

1

2 3

0V

3.9V

QK10

KRC104M

1

0V

3

QK11

KRC104M

2

0V

RK15

4.7K

CK60

100/16

RK69

220

KRC104 M

2

0V

0V

3

0V

RK21

RK23

56

100K

3.9K

CK19

CK17

560P

0.033

CK21

1/50

0.5V

3

112K

–
+

+

-

112K

22

3.0V

CK22

1/50

CK20

CK18

560P

0.033

RK24

RK22

3.9K

100K

56

0V

QK14

KRC104 M

3

0V

RK34

68K

RK27

1

8.2K
RK31

RK25

33K

5.6K
CK23

0.1

CK25

0.0082

RK29

10K

RK30

10K

0V

RK32

33K

0.8V

5

20

CK27

0.022

3.2V

4

21

CK26

0.0082

RK26

5.6K

CK24

0.1

1

RK28

8.2K

2

0V

19

6

CK28

3.3/25

RK37

6.8K

RK38

RK36

3.3K

6.8K

3.3K

RK35

0V

HIGH=CHRO

18

0V1.3V

RK47
10K

470P

CK29

CK31
470P

CK33
22/25

7

CK34
22/25

CK32
470P

CK30
470P

H

• NOTES ON SCHEMATIC DIAGRAM can be found on page 17.

1

23456

Figure 28 SCHEMATIC DIAGRAM (7/15)

– 28 –

7
4 M

3

4V

V

KRC104 M
2

2.5V

QL18

1

CD-C449W/K449W

MAIN PWB-A(4/4)

TA2F/R SPEED

3

0V

0V

0V

3

2

QL19

12.5V

KRC104 M

1

0V

DL11

1SS133

CL13

3.3/50

0V

1

2

4.1V

0V

3

QL16

KRC107 M

RL24

3.3K

TA2MOT2SW

M212V

TA2SOL
T22A2FP

TA2CAM2SW
M2GND
T12RUN

T22RUN
T22B2FP

T12CRO2

TA_F/R SPEED

3

TA_MOT_SW

4

M_12V

1

TA_SOL

5

T2_A_FP

6

TA_CAM_SW

7

M_GND

2

T1_RUN

8

T2_RUN

9

T2_B_FP

10

T1 Cro2

11
12

T2 Cro2 H:Cro2

P24 1-G

MAIN SECTION

L: NORM

RK47

10K

470P

CK29

CK31

470P

CK33
22/25

7

HIGH=CHROME

18

V

CK34
22/25

8

CK32
470P

CK30
470P

PB.MUTE

QK17

2SC2878 A

0V

0.7V

CK10
47/25

CK35

0.022

RK39

560

LK01

1.8mH

0.6V

8

PLAYBACK AND RECORD/PLAYBACK AMP.

17

0.6V

LK02

1.8mH

RK40

560

CK36

0.022

–

+

+

–

56K

56K

CK37

0.018

RK41

RK42

CK38

0.018

0V

82

82

0V

1

2

QK15

KRC104 M

CK39

0.0033

CK40

0.0033
QK16

KRC104 M

2 3

1

HI.SP

3.8V

3

ICK01

AN7345K

0V

RK45 10K

RK49 10K

CK41
47/25

RK50

10K

CK45
22/25

0V

3.1V

3.0V

3.8V 6.3V

9

15

2

NOR/CrO

ALC

16

10

3.0V

CK42
47/25

RK46

10K

HI.SP

RK43

10K

CK43

0.022

1

2

0V

14

ALC GND

11

0V 0V

0V

13

RIPPLE

12

RK52

1K

2SC2878 A

RK48

10K

CK44

0.022

3

3.8V

QK19

KRC104 M

CK46

220/10

VCC

QK18

CK47

0.022

0.7V

HI.SP

TA T1/T2H:T1 L:T2

13

PB.MUTEH:ON L:OFF

14

PRE L-CH

25

HI. SP H:LOW L:HIGH

16

PRE R-CH

CK55

0.022

RK73

27K

RK72

27K

26

GND(A)

22

12V(A)

21

BIAS H:ON L:OFF

15

REC L-CH

23

REC R-CH

24

TA R/P@H:PB L:REC

17

P24 1-G

MAIN SECTION

0V

0V

RK57

4.7K

RK58

470

CK62

0.047

RK66

27K

CK50

0.0082(P.P)

CK51

0.027(ML)

QK24

KTA1266 GR

RK60

270

RK67

47K

0.3V

RK68

4.7

LK04

330µH

RK61

LK03

1mH

270

0.3V

0V

RK62

47K

12.6V

12.5V

BIAS

0.3V

KTA1266 GR

0.3V

0.27V

QK28

2SC2236 Y

CK52
47/16

QK25

12.5V

RK64

4.7K

0.26V
RK63

10K

RK65

10K

QK22

KTC3199 GR

0V

0V

QK26

KRC104 M

2

0V

1

1

0V

2

0.3
V

QK27

KRC104 M

0.7V 0.7V

RK54

10K

3

0V

0V

3

RK53

QK30

0V

KRC104 M

3

1

2

QK21

3

0V

RK74

0V

RK81

5.4V

2

6.8K

1

0V

5.4V

3

0V

1

QK29

KRC107 M

2

0V

RK75

82K

82K

QK40

KRC107 M

5.4V

RK55

33K

RK56

33K

0V

KTC3199 GR

0V

10K

REC MUTE

18

TA BE EQ L:NORM

19

H:Cro2

GND(BIAS)

20

7

8 9 10 11 12

Figure 29 SCHEMATIC DIAGRAM (8/15)

– 29 –

CD-C449W/K449W

DISK 1

0

FM SIGNAL

A

B

C

D

E

WTV11

TO SPEAKER

AMP.2 PWB

P35 12-C

TO MAIN PWB

FROM MAIN PWB

HP-LCH

GND(A)
HP-RCH
GND(M)
H/P SW

WTP01

P26 1-E

CNPF01

P24 1-B

5

5

1

1

FWV91

HEADPHONES PWB-C3

3 1 3

VF2
–38(VP)
VF1

1

FWD02

10

9

GND(D)

8

COM1

STB

SCK1

7
6
5
4
3
2
1

CNSD01

+B

+B

+B

SLR505MC

+4.6V(D)

+12V(M)

RESET

DATA1

LEDD20

KL052UL

LEDD21

RV91

220

RV92

220

LV91

2.2µH(XH)

RD54

1.2K

RD55

820

CV91

100

KRC107 M

2

2

KRC107 M

QD07

1

1
QD08

3

3

CV92

100

X2

R-PLAY

REW

JV91

HEADPHONE

F1

F1

NC

NC

S2

S1

1 2 3 4

RD51

1.2K

2

LEDD19

3

RXD01

REMOTE

CONTROL

SENSOR

RD49

1.2K

RD50

820

2

2

1

QD05 KRC107 M

3

1

RD57

39

2

RD48

1.2K

2

2

1

3
1
3

QD06
KRC107 M

1

CD09

150P

QD01

3

2

3

KRC107 M

QD02

1

KRC107 M

QD03

3

KRC107 M

1

RD04 1K
RD05 1K
RD06 1K

RD07 560

RD08 1K

RD09 560

RD10 1K

RD11 560

RD12 1K

RD13 560

RD14 1K
RD15 1K
RD16 1K
RD17 1K

DD01

1N4004S

DD02

1SS133

QD04

KRC107 M

RD03

1K

PAUSE

VDD

DATA1

COM1

SCK1

+B

RD58

100K

FF

VSS

STROBE

RD19

1K

RD21

1K

RD22

1K

RD02

81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100

RD01

1K

F-PLAY

STOP

S46

S47

(0V)

PG1
(0V)
PG2

SRS-G

(4.0V)
PG3

SRS-R

P00

PHANT-G

P01

PHANT-R

P02

VIRTUAL-G

P03

VIRTUAL-R

VSS2

(0V)

VDD2

(4.1V)

P04

NORMAL-G

P05

NORMAL-R

P06

STEREO-G

P07

STEREO-R
(0V)

SO0

(0V)

SI0

(4.0V)

SCK0

(0V)

SO1

(0V)

SI1

P17

P16

(0V)

(0.6V)

1

2 3

RD59
100K

CD19 150P

CD10

220/6.3

LEDD06

SLR325MG

LEDD09

SLR325MG

LEDD13

SLR325VR

CD20 150P

LEDD15

SLR325MG

CD11

0.022

LEDD01

KL052UL

LEDD02

KL052UL

LEDD03

SLR505MC

LEDD04

KL052UL

RD52

560

RD53

1K

LEDD12

SLR325MG

CD21 150P

SLR325MG

(YELLOW)

F-PLAY

(YELLOW)

STOP

(GREEN)

FF

(YELLOW)

PAUSE

LEDD05

SLR325MG

LEDD07

SLR325VR

LEDD08

SLR325MG

LEDD10

SLR325VR

1/50

CD30

CD28

1/50

+B

1/50

CD29

LEDD14

SLR325MG

LEDD16

SLR325VR

LEDD17

SLR325VR

LEDD18

SLR325MG

+B

LEDD11

SLR325MG

CD18 150P

1K

S45

(0V)

P30

R-PLAY

CD05

0.001

6

5

S2

S1

74757677787980

S44

S43

S42

S41

(0V)

(0V)

(0V)

(–28V)

(–30V)

81

(

PG0

(0V)

(0.6V)
(10.8V)

(–6V)
(10.8V)

(0.6V)

(10.8V)
(9.0V)
(0.4V)

100

SCK1

(0V)

(0V)

(0V)

(0V)

P31

P32

P33

P34

(0V)

4

6

5

7

REW

RD2

1K

RE09

F

SWD11

FLAT

SWD18

SRS/DEMO

27K

SWD10

HEAVY-1

RE17

5.6K

SWD17
F-PLAY

G

SWD38

CLEAR

RE39

27K

SWD37

SLEEP

RE38

12K

SWD36

TIMER

H

• NOTES ON SCHEMATIC DIAGRAM can be found on page 17.

1

23456

Figure 30 SCHEMATIC DIAGRAM (9/15)

RE08

12K

RE16

3.9K

RE37

5.6K

– 30 –

SWD09

HEAVY-2

SWD16

REC/PAUSE

MEMORY

RE36

3.9K

RE15

2.2K

+B

RE07

5.6K

SWD34 SWD35

CLOCK

SWD08
VOCAL

SWD15

HIGH EDIT

RE35

2.2K
SWD33

R-PLAY

RE14

RE06

3.9K

SWD07

1.8K
SWD14

NORMAL EDIT

RE34

1.8K

SOFT

SWD32

REVERSE

MODE

RE04

3.9K

RE13

SWD13

1.2K
STOP

SWD22

BALANCE LEFT

RE33

1.2K
SWD31

CD

PAUSE

RE02

2.2K

SWD03

X-BASS

RE12

1K

SWD12

TUNING UP/CUE

RE22

1K

SWD21

BALANCE RIGHT

RE32

1K

SWD30

TUNING DOWN
/REWIND

KEY1

RE01

8.2K

KEY2

RE11

8.2K

RE21

8.2K

KEY3

RE31

8.2K

KEY4

P30

R PLAY

F1

2 3 4

D01
1K

8

S45

(0V)

G
R

(0V)
T-G
T-R
AL-G
AL-R

)

1V)

MAL-G
MAL-R

EO-G
EO-R

V)

(0V)

4

3

REW

D05
.001

NC

S44

(0V)

(0.6V)
(10.8V)

(–6V)
(10.8V)

(9.0V)

(0V)
P31

NC

S43
(0V)

81

(0.6V)
(10.8V)

(0.4V)

100

(0V)
P32

5

S4

S3S2S1

8

9

6

5

7

S4

S3S2S1

VDD

S42

S41

S40

S39

VDD4

(–28V)

(–28V)

(–30V)

(–30V)

(4.1V)

(0V)

PG0

(0V)

SCK1

(0V)

(0V)

(0V)

(0V)

(0V)

P33

P34

P35

P36

P37

10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

9

6

8

7

DISK 1

DISK 2

DISK 3

1K

RD27

RD26

1K

1K

RD28

RD60

10K

SWD01

VOL JOG

S9S8S7S6S5

10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47

S15

S14

S13

S12

S11

S10

S9S8S7S6S5

S38

S37

S36

S35

S34

S33

S32

S31

S30

S29

S28

(–28V)

(0V)

FL-SET

INT0

RD30

RESET

47K

(–30V)

(–30V)

(–30V)

(–30V)

(–30V)

ICD01

IX0234AW

LF DRIVER AND

CONTROLLER

(0V)

(4V)

(4V)

(4V)

(1.7V)

/RES

P74

P75

VSS1

CF1

VSS

XCIN

VOL JOG UP

VOL JOG DOWN

1K

RD32

XD01

CD01

1K

0.022

1K

RD31

RD33

CD02

100/10

RD61

10K

CD06

0.001

XCOUT

(–30V)

(1.9V)
CF2

RD62

8.2K

(–30V)

(–21V)

(4V)

(0V)

VDD1

AN0

VDD

TUN-SET

RD34 820

RD35

2.2K

RD67

(–26V)

(0.4V)

AN1

AUD-SET

1K

1K

RD36

(0V)

AN2

0V

KEY1

RD37

RD66

(–28V)

S15

S14

S13

S12

S11

S10

8.2K

1K

S16

S16

S27
(0V)

(4V)
AN3

KEY2

RD38

50

1K

S17

S17

S26
(0V)

(4V)
AN4

KEY3

RD39

S19

1K

S18

31

KEY4

S18

S25
(0V)

(4V)
AN5

RD40

(–30V)

S1

1K

FLD01

FL DISPLAY

S19

S21

S20

S21

S20

S19

S24

S23

S22

(0V)

(–28V)

(0V)

(4V)

(4V)

(4V)

AN6

AN7

INT1

KEY5

KEY6

JOG UP

1K

RD41

RD43

1K

RD42

S22

S23

S22

52

S21

S20

(–28V)

(–23V)

(–21V)
(–30V)
(–26V)

(4.0V)

VDD3
(–29V)
(–29V)
(–29V)
(–29V)
(–29V)
(–29V)
(–29V)
(–29V)
(–29V)
(–29V)
(–29V)
(–29V)

(–29V)

(–29V)

(4V)

INT2

INT3

REMOCON

JOG DOWN

1K

1K

RD44

S23

(3.5V)

(–26V)

S18
S17
S16

S15
S14
S13
S12
S11
S10

–29(VP)

5153545556575859606162636465666768697071727374757677

VP

S9
S8
S7
S6
S5
S4
S3

S2

S0

RD45

+B

(–30V)

(0V)

1K

CD-C449W/K449W

11G

S27

S26

S25

S24

S24

50

S25

49

S26

48

S27

47

VDD

46

G1

45

G2

44

G3

43

G4

42

G5

41

G6

40

G7

39

G8

38

G9

37

G10

36

G11

35

G12

34

G12

33
32
31

1G

2G

3G

+B

+B

LD01

2.2µH

RD64

RD65

10K

10K

CD07

0.001

SWD02

JOG

CD08

0.001

JOG PWB-C4

12G

8G7G6G5G4G

9G

NCNCF2

10G

F2

DISC 3

DISC 2

DISC 1

QD10

KRC107 M

3

1

3

1

KRC107 M

3

1

KRC107 M

2

2

QD11

2

QD12

RD72

RD70

DISC 3

820

RD71

DISC 2

820

DISC 1

820

KEY1

RE01

8.2K

KEY2

RE11

8.2K

RE21

8.2K

KEY3

RE31

8.2K

KEY4

+B

KEY5

KEY6

RE51

8.2K

RE41

8.2K

SWD39

VIDEO/AUX1

RE42

1K

SWD40

VIDEO/AUX2

RE43

1.2K
SWD41

TAPE

1/2

RE44

1.8K

TUNER/BAND

SWD42

RE45

2.2K
SWD43

CD

SWD48
POWER

RE52

RE53

1.2K

1K

SWD49

KARAOKE

CD-K449W

ONLY

+B

1 6

FWD01

6 1

LEDD24

LEDD28

LEDD26

LMKD515B

LEDD23

LEDD27

LEDD25

LEDD23~LEDD28

DISC1

DISC3

DISC2

SWD53

DISC
SKIP

RE56

3.9K

RE57

5.6K

SWD54

OPEN/CLOSE

DISPLAY PWB-C1

7

8 9 10 11 12

SWITCH PWB-C2

SWD52

DISC3

RE55

2.2K

SWD51

DISC2

RE54

1.8K

SWD50

DISC1

Figure 31 SCHEMATIC DIAGRAM (10/15)

– 31 –

CD-C449W/K449W

Q

FM SIGNAL MW/SW1/SW2 SIGNAL

A

B

C

C338

D

E

F

G

SW1
SW2

MW

GND

FM

75ohms

SO301

ANTENNA

TERMINAL

0.001

D301
1SS133

D302
1SS133

FM BAND PASS
FILTER

RT01
100K

D303
1SS133

D304
1SS133

C301

0.001

BFT01

C303

0.022

CT01
18P(CH)

SW2

C304

TRACKING

0.022

C305

0.047

R317
10K

C314

0.022

D316
1SS135

SW1
TRACKING

SW1 BAND
COVERAGE

MW BAND
COVERAGE

CT02

0.01

CT04

0.001

VDT01

KDV147B

RT02

CT06 0.022

R310
22K

D305
1SS135

D306
1SS135

SW1
TRACKING

D307 1SS135

D308
1SS135

R318

1.5K

L311
560µH

R320
10K

fH

fL

SW1 OSC

fL
fH

RF

33K

CT08 0.0047

CT07 0.001

SW2 ANT

fL
fH

fL

SW1 ANT

fH

MW TRACKING

D312

1SS133

R321

5.6K

C315

0.1

SW2 OSC

T307

MW OSC T306

T304

T303

T302

MW ANT

T308

C316

0.1

D315

TC304

TC305

R323
68K

C306
10P (UJ)

C308 (UJ)

8.2P

1SS135

ICT01A TA7358AP

FM FRONTEND

MIX

4321321

6

5

CT03

4.7P

FMRF

1DT01

SS133

LT01

CT05

6.8P
(UJ)

RT03
22

CT09

0.0047

FMIF
TT01

CT10

0.022

TC302

TC303

VD301-1
KV1236Z23F

C330

8.2P
(UJ)

C318

0.022

C319

0.022

0V

0V

2SC2878 B

0V

0V

VD301-2
KV1236Z23F

C334
18P
(UJ)

7
CT11
15P
(CH)

KV1236Z23F
Q309
2SC2878 B

0V
0V

0V

0V

R316
22K

R319
100K

C331

0.047

R322

5.6K
R328

10K

R329
100K

R327

0V

5.6K

Q307

0V

Q306
2SC2878 B

C335

B.A

RT06
10

LT02

FM BAND
COVERAGE

FM
OSC

CT13

3.9P(UJ)

RT04
47

RT05
47K

VD302-B

0V

R314

3.3K

0V

Q308
2SC2878 B

VD302-A
KV1236Z23F

C336
470P

18P (CH)

OSC

QT01
2SC535 C
AMP

R312
33K

D311
1SS135

C320

0.0018

R330
1K

CT12
33P

RT07
680

D309
1SS135

D310
1SS133

D317

R324
100K

VCC

98

VDT02

CT14
22P(CH)

R313

R315

C311

0.022

R302
82

C321

0.0039

1SS135

CT15

KDV147B

RT09
820

C307

0.047

C309
330P

22K

C310

0.001

22K

D313
1SS133

D314
1SS133

R325
56K

R326
1K

0.022

CT16
10/16

RT08
10K

R311
100K

C349

R340

C390
100P

SW2+B

1/50

220

2

3

C312

0.022

R343
47K

R339

Q364

KRA107 M

1

RT10

4.7K

C313

0.022

SW1+B

470

2

3

R342
47K

Q363

KRA107 M

1

R338

0V

2

3

MW+B

R341
47K

470

Q362

FM MUTE
LEVEL

L356
1mH

KRA107 M

1

12.18V

3

C342

0.022

VR351
10K(B)

CF302

10.7MHz
FM1F

+B

+B

+B

1

321

H

• NOTES ON SCHEMATIC DIAGRAM can be found on page 17.

1

23456

Figure 32 SCHEMATIC DIAGRAM (11/15)

– 32 –

C342

0.022

VR351
10K(B)

MUTE

VEL

356
mH

CF302

0.7MHz
FM1F

+B

CD-C449W/K449W

TUNER PWB-E

Q365
KRC107 M

3

2

1

321

C351

+B

C381
12P (CH)

C382
15P (CH)

+B

L353
1mH

R382
150

R358

8.2K

R351

5.6K

0.022

X352

C343
15P (CH)

3.48V

AM OSC OUT

FM IF IN

2.06V

C350

0.022

C352

10/16

C397

0.022

2.52V

4.5MHz

2.52V

C362

3.3/50

5.01V

2.2V

AM OSC IN

AM MIX OUT

5.01V

R381
10K

0V

VSS

X OUT

X IN

NC

0V

C361

0.022

C360

0.022

C363 0.022

C364 10/16

L358

560mH

L357

4.7mH

FM AFC

REG

2.07V

T351

AMIF

C392

C394

0.001

47/16

R380

1.5K

C393

2.2/50

2.1V

IC302
LC72131

AOUT

PLL CONTROLLER

CEDICLDOFMMWSW1

4321

0V

0V

2.2V

0.9V

5

4.82V

AM RF IN

R352
1K

1

R379

0.9V

PD

AIN

6

5.1V

0.46V

VSM

AM IF IN

4321

2.06V

3

2

C387

C380

2.2K

2.48V

5.11V

VDD

7

R397
1K

0.16V

R373 1K
R374 1K
R371 1K
R372 1K

TP 302

C365 0.022

C366 0.001

R350

2.7K
C367

1/50

0V

2.52V

IC303
LA1832

FM/AM OUT

FM IF DET./FM MPX./AM IF

AM LOW CUT

GNDSDSTEREO

6

5

0V

5.09V

C353

0.022

CF352

AM IF

R393 1K

0.022

L351
100µH

1/50

C385

0.01

0V

0V

0V

NC

AM IN

FM IN

98

10

3.85V

12.1V

R398 1K

7

5.09V

C354

0.022

R396
1K

2.38V

121314151617202122 1819

IF IN

SW2

MO/ST

11

3.95V

FM DET

8

2.84V

FMIF

CF351

C386

330P

1K

STEREO

5.1V

R360

4.7K

R353

R376

9

270

X351

2.29V

VCC

C399

FMIF

R395
47K

456kHz

5.01V

0.022

R377
47K

R390
82K

R357

470K

R356

C368

2.05V

MPX IN

MPX VCO

IF OUT

PHASE

11

10

3.68V

3.85V

C357

2.2/50

C355

C398

100/10

C374

0.022

1K

1/50

1.19V

22P

1.18V

OUT

R-CH

C358
1/50

C356

0.001

R359

1.8K

C373

C371
1/50

C372
1/50

131415161718192021222324

OUT

L-CH

PHASE

12

+B

0.022
R364

1.5K

R361

5.6K

R362

5.6K

3.95V

MO/ST

(FM/AM)

3.85V

R355

3.3K

C370

1/50

L352
100µH

+B

Q360
KTA1266 GR

11.6V 12.18V

R385

5.6K

D352 1SS133

2

C383

0.0022

GND(D)

CNP303

R363

1.5K

MUTING
Q353
KTC3199 GR

0V

0V

R367
1K

0V

0V

Q354
KTC3199 GR
MUTING

R354

4.7K

11.37V

R384

5.6K

1

KRC107 M

D351
1SS133

0.65V

ZD351
MTZJ4.7B

C395

0.022

C391
47/16

1

10K

C375

R365

3.3/50

R368
33K

R366

0.65V

10K

C396
100/10

R391
390

R392
390

R383

5.6K

ZD352
MTZJ3.9B

3

R387

Q361

22K

CLDOCEDI+12V(A)

432

6

5

D353

GND(A)

TUNER MUTE

L-CH

98

7

1SS133

R-CH

SD

11

10

FROM MAIN PWB

P24 1-E

7

8 9 10 11 12

Figure 33 SCHEMATIC DIAGRAM (12/15)

– 33 –

CNSF13

CD-C449W/K449W

2
5

0

A

B

C

TO MAIN PWB

P27 12-E
CFWP01

FWP01

OUT1(L-CH)

RELAY1

GND(A)

FAN CONT

OUT2(R-CH)

SP LEVEL

GND(M)
H/P SW
+12V(M)

FAN SW

PROT

POSISTOR

AMP

QV13
KTC3200 GR

FM SIGNAL

3

1

42.1V

Fusible

Fusible

–42V

CV25

0.022

CV26

0.022

7

6

CV11

CV13

2.2/50

CV14

2.2/50

RV13

RV14

RV18

RV17

1K

56K

56K

1K

RV19

CV19

100/50

0V

14

56K

QV16
KTC3199 GR

RV22

56K

0V

RV23

0V

0V

1K

13

RV24

11

10

0.67V

RV37

47K

RV38
10K

1K

ICV01
POWER AMP.
STK407-09

RV35

2.2K

RV36

22K

41.4V

0V

42V

0V

DV21

1SS133

RV63
120K

RV33

10K

0V

–39.5V

15

12

ICV01

POWER AMP.

4

0V

41.1V

42.1V

QV17

KTA1268 GR

RV71

820

5

0.2V

9

CV27
1000/6.3

–40.6V

8

RV25
100(1/2W)

CV23
47/63

CV24
47/63

RV26
100(1/2W)

2

CV17
47P

CV21

15P

RV21

270

RV20
270

CV20
100/50

CV22

15P

CV18
47P

2.2/50

CV15

CFWV11

1

FR

2
3
4
5
6
7
8

9
10
11

NC

12
13
14

470P

CV16

470P

CV12

2.2/50

0V

0V

RV27

10K

RV29

0.2(1W)

RV69

0.2(1W)

RV70

0.2(1W)

RV30

0.2(1W)

RV28

10K

KTC3200 GR

3.9V

DV13

0V

1SS133

0V

1K

RV31

RV32

0V

3.9V

0V

QV14

DV15

1SS133

QV18

KTC3199 GR

1K

CV30

3300/63

DV14
1SS133

CNPV12

–VCC

1

0V

–VCC

GND

2 3 4

3.9V

0V

QV19
KTC3199 GR

+VCC

GND

GND

6

5

3.9V

CV29
3300/63

+VCC

7

0V

CV
47/

1 2 3 4

CNS903

1

GND

C907

BI903

4.7K

R917

Q914
KRC107 M

3

R907

560(1/4)

220/25

4700/25

ZD903

MTZJ130C

C919

1

–VCC

D

E

F

G

POWER PWB-D

–B

+B

+4.6V(D)

GND(D)

+B

–0.62V

–B

+B

+B

+B

+B

3

0V

+B

2

1

1.35V

Q907
KRA102 M

+7.3V(CD)

CD GND(D)

GND(M)

C906

0.022

+12V(A)

C911

0.022

+12V(M)

2SD468 C

4.8V

Q903

C905
47/25

Q913

R901

2SB1375

68(3W)

–41.4V–11.9V

R918
100

13.8V

13.8V

2
R908

33K

F999
T500mA L 250V

–12.47V

–12.45V

2

ZD901
MTZJ130A

(1/4W)

1

1.35V

3

Q904

KRA107 M

KTC3199 GR

13.2V

13.8V

C903
47/25

18.8V

Q905

KTC3199 GR

13.2V

R910

150

C908
47/25

C902

47/25

Q901

13.8V

D903

1N4004S

–12.4V

C920
47/25

18.8V

R902

1K

18.8V

R909

1K

C901

0.022

Q902

2SD2012

12.5V

18.8V

13.2V

C904
47/25

C909

0.022

18.1V

R911

560(1/6)

12.5V

R903
47(1/6)

Q906

2SD2012

13.1V

D904

1N4004S

R905

11.8V

22

R904

Fusible

MTZJ5.6A

1SS133

Q909

2SD2012

7.8V

ZD902

D901

8V

18.1V

KTC3199 GR

R912

47

C910
47/25

1.5K

Q908

8V

8.4V

ZD904

MTZJ8.2C

5.46V

R906

100

D905

1SS133

2 3 4

GND

–VCC

GND

5

5

GND

6

6

+VCC

7

7

+VCC

–12V(A)

GND(M)

+7.3V(CD)

GND(D)

+4.6V(D)

+12V(M)

+12V(A)

GND(A)

BI901

2 3 4

1

2 3 4

1

CNS901

H

TO MAIN PWB

6

5

6

5

P27 12-F

CNPP01

7

7

CD GND(D1)

8

9

8

9

POWER

GND(D3)

11

10

11

10

• NOTES ON SCHEMATIC DIAGRAM can be found on page 17.

1

23456

Figure 34 SCHEMATIC DIAGRAM (13/15)

– 34 –

CD-C449W/K449W

ZD903

4

7K

33

DV15

1SS133

QV18

KTC3199 GR

CV30

3300/63

133

PV12

–VCC

1

–VCC

GND

2 3 4

3.9V

0V

0V

QV19
KTC3199 GR

GND

GND

5

+VCC

6

3.9V

CV29
3300/63

+VCC

7

SPEAKER AMP.PWB-F

CV47
47/25

7.2V

0V

QV20
KTA1270

TMV01

+

–

+

–

2
1

WTV11

5
4
3
2
1

CNPV11

2
1

HP-L-CH
GND(A)
HP-R-CH
GND(M)
H/P SW

FAN MOTOR

CNSV11

SPEAKER
L-CH

SPEAKER
R-CH

M901

M

HEADPHONES PWB

FROM
P30 1-B

FW901

8OHMS

RLYV11

CV31

RV41

56K

0V

0V

RV40

CV28

56K

47/50

RV42

56K

0.1(ML)

CV33

0.1(ML)

RV43

4.7(1/2W)

RV44

4.7(1/2W)

CV34

0.1(ML)

CV32

0.1(ML)

DV17

1SS133

0.13V

QV22
KTC3199 GR

RELAY1

RV62

3.3K

FAN SW

DV23

RV54

0.8V

SP LEVEL

FAN CONT

1SS133

22K

0V

RV61

47K

H/P SW

DV24

RV53

RV60

1SS133

22K

27K

DV19

1SS133

ZDV11

MTZJ5.1B

RV59

100K

CV48

DV22

DV25

1SS133

10/50

1SS133

RV58

RV55

47

ZDV12

MTZJ6.2B

RV56

3.9K

8V

RV57

4.7K

0V

RV72

22K

CV49

100/50

10K

DV20

1SS133

0V

QV21
KTC3199 GR

RV51

330

RV52

8V

330

S903

BI903

.

914

RC107 M

R907

60(1/4)

MTZJ130C

C919
00/25

1 2 3 4

2 3 4

1

GND

–VCC

–VCC

GND

5

5

GND

6

6

+VCC

7

7

+VCC

D991

KBU1003

R954

T991

POWER TRANSFORMER

C954

0.047(ML)
C956

0.047(ML)

D992-D995
2A02

D992

D995

D994

D993

C964

R955

47/50

C965

12K

100/35

ZD952

MTZJ6.8C

-38V

R953
220

220

(1/4)

(1/4)

R956

–31.4

KTA1266

Q951

C957

0.047
(ML)

C958

0.047

(ML)

C963

47/50

100

R957

–32.1V

–36.1V

D951

1N4004S

C961

220/50

ZD951

MTZJ330C

2.2K

C962

47/63

D954

1N4004S

D952

1N4004S

D953

1N4004S

C960

220/50

C959

220/50

F997

T2A L 250V

T.F.

F991

T1.6A L 250V

F992

T1.6A L 250V

SW991

VOLTAGE

SELECT

230-240V
220V
127V
110V

F990

T3.15A L 250V

(285)

(285)

AC POWER

SUPPLY CORD

AC110/127/220

/230-240V

50/60Hz

(242)

–VP

VF1

VF2

FW901

1

2 3

TO MAIN PWB

P26 1-E
WTP02

7

8 9 10 11 12

Figure 35 SCHEMATIC DIAGRAM (14/15)

– 35 –

CD-C449W/K449W

TO MAIN PWB

CNPU02

P25 12 - E

IN(R)

L-in

R-in

MIC

DIGITL
ECHO

VR603
20K(B)

C626

948

948

GND(D)

0.1/50

CNSU02

VOLTAGE
REGULATOR

KTC3203 Y

C627

0.022(ML)

Q631

+B

R669
220

C628

0.082(ML)

FM SIGNAL

R670
220

C677
47/25

ZD631
MTZJ5.6B

R668

1.2K

R667
100

6.4V

5.4V
C674

4.7V

47/25

C673

0.022
C672

47/25

+B

567

3

2

BI601

1

1

V.CAN

2

OUT(L)

IN(L)

3

GND(A)

+B

567

+12V(A)

OUT(R)

A

KARAOKE PWB-L CD-K449W ONLY

B

C

L-out

V.CAN

+B

D

R612

56K

C618

0.01(ML)

R614

30K

C619

100P

R-out

R615

3.3K

15K

C624

0.1/50

2.3V

25

ECHO VOL IN

R617

C625

2.3V

24

LPF2 OUT

R616

10K

0.0082

23

LPF2 IN

R618

2.3V

15K

C630

C629

0.068

2.3V

2.3V

22

21

DA INT IN

DA INT OUT

0.22(ML)
+B

(ML)

0.6V

20

DA CONT

19

VCC

C632
100/10

C631

0.022

4.7V

D601

R611

1K

32

1.6V

CLOCK

0.5V

31

MIC SW

1SS133

C620

C621

2.2/50

2.3V

2.3V

29

30

L LINE OUT

MIC ECHO OUT

C623

2.2/50

2.3V

2.3V

28

R LINE OUT

C622

2.2/50

27

L LINE IN

2.2/50

2.3V

26

R LINE IN

C617

0.15/50

R610

1K

0V

0V

2.3V

4.7V

34

36

35

33

E

VCFIL

VALC

AUD SW2

AUD SW1

IC601

MIC AMP.

M65845FP

MIC IN

ALC1

MIC1 NF IN

123

0V

2.3V

2.3V
C605

F

R604

R603

1K

C604

2.2/50

G

C602

0.47/50

MIC1 OUT

4

2.3V

270P

150K

C633

VR602

MIC2 IN

MIC1 VOL IN

5

6

2.3V
C606

0.1/50

2.2/50

20K(B)

MIC2 VOLUME

R602

5.6K

2.3V

ALC2

7

0V

R636

C608

MIC2 NF IN

8

2.3V
C609

R605

1K

2.2/50

MIC OUT

9

2.3V

270P

C611

150K

C610

VR601

5.6K

R601

MIC2 VOL IN

MIC OUT

10

11

2.3V

2.3V

0.1/50
R606 15K

2.2/50

20K(B)

MIC1

VOLUME

LPF1 IN

LPF1 OUT
13

12

2.3V
C612

0.0082

R608 15K

R607 10K

C634

0.082

C601

0.47/50

AD INT IN

AD INT OUT
15

14

2.3V

2.3V

2.3V

R609 33

C613 0.068(ML)

C614

(ML)

AD CONT
16

0.6V

0.22

(ML)

REF
17

2.3V

C615

GND

18

0V

220/10

R619

C616

22K

0.15/50

J602

MIC2

H

• NOTES ON SCHEMATIC DIAGRAM can be found on page 17.

1

23456

Figure 36 SCHEMATIC DIAGRAM (15/15)

– 36 –

J601

MIC1

SENSOR PWB-J

SW3

DISC NUMBER

21

SW1

OPEN/CLOSE

CNS5

21

SW2

MECHA UP

M3

T/T UP/

DOWN LOADING

OR

10

987654321

CNS10

WH

1

GY

WHBRWH

CD-C449W/K449W

SOLENOID

SOLM2

CD MOTOR PWB-K

1
2
3
4
5
6

RD
WH
GY
WH
GY
WH

1
2
3
4
5
6

-

1
2
3
4

CNP3A

5
6

CNS3BCNS3A

+

-

BIM5

6

RD

GY

GY

WH

CNS1A

1

BK

2

WH

3

PK

4

YL

5

BL

1
2
3
4
5
6
7
8

PICKUP UNIT(306)

CNS1B

BL

1

PK

2

WH

WH
WH

WH

RD
GY
GY

WH
GY

GY

3

YL

4

BK

5
1

2
3
4
5
6
7
8

CNS2BCNS2A

10

7

M2
SLED MOTOR

+

SW4

PICK UP IN

M1

SPINDLE MOTOR

6421

5398

+

-

CD SERVO PWB-B

C54

C8

R12

C4

C7

R8

R9

R11

R37

8
7
6
5

CNP3

4

CNP2

3
2
1

R19

20

25

IC3

30

35

36

R82

1
2
3
4
5
6
7
8
9

10

CNP10

C5

C6

R14

C9

R13
R16

R20

1819

15

10

5

1

1

8

3

6
5
4

7

R83

2

9

IC81

R10

R15

C10

R18

R21

R22

R25
C14

C12

R27
C16

R30

R28

R31

E
C

C81

B

D91

3
2
1

Q93

CNP11
65

C82

CNSF11

TO MAIN PWB

P38 5-H

CNP1

Q91

4

M901

FAN MOTOR

COLOR TABLE

BR

BROWN

RD(R)

WH(W)

OR

YL

GR

BL
VL

GY

BK
PK

RED

ORANGE

YELLOW

GREEN

BLUE

VIOLET

GRAY
WHITE
BLACK

PINK

CNSV11

RD

2

BR

1

CNPV11

TO SPEAKER

AMP.2 PWB

P44 2-A

C35

1
2
3
4
5
6

R48

C36

• The numbers 1 to 12 are waveform numbers shown in page 18.

C85

Q1

R2

1

C3

2
3

C15

4

C1

5

R17

16

15

17

20

C11

R23

R24

C13
R26

R29
C17

R33

C18

D3

D2

R87

R81

R86

R80

Q51

321

2

3

1

TO MAIN PWB

BCE

R1
C2

5

10

12

25

R34

D4

R66

R64

1

WH

RD

RD

WH

1

CNPR11

P38 2-H

1

IC1

30

32
C21

C52

BI99

35

C20

C19

64

60

33

Q52

32

C31

R46

55

45

40

R32

R88
R89

R90

BCE

ZD61

3

BK

BK

CNS99

C34

C33

49

50

48

R36
R35

C51

C32

R45

L61

11

D1
C30

C57

C28

C25

C29

R44

C22

16
17

C50

C71

C73

R73
C74

R54

R74

14 13 12 11 10 9 8

TO MAIN PWB

R39

R43

R40

15

20

R72

CNSF12
P39 9-H

C24

R41

C26

C27

R42

C23

R38

R50

C56

1

64

5

10

IC2

25

30

35

32

33

C43

C72

7654321

R51

C39

C40

C47

C38

R52

R53

C46
R60

R61

R62

R57

60

55

50

49
48

45

40

R93

R55

C53

D81

C83

D82

CNP12

C48

R47
C37

R63

R59

R58

C44
C49

C45

XL1

C42

C41

7

8 9 10 11 12

Figure 37 WIRING SIDE OF P.W.BOARD (1/9)

– 37 –

CD-C449W/K449W

RS36

2

C

R

K
B

TO TUNER PWB

P42 1-B

CNP303

FROM SPEA

AMP PW

P44 3-A

CNWV1

RG01

RU93

RU94

1

QG04

E
C
B

A

MAIN PWB-A

CP18

RP18

CP16

CP20

CP08

RP16

RP22

14

B

RP10

RP09

RP12
RP11

CP15

CP17

CP19

RP15

ICP11

CP28

58

RP17

RP19

RP20

CP07

RP26

RP21

RP25

CP27

CP24

CP23

CP09

CP10

RP32

RP31

RP30

CP26

RP29

E
C
B

1 2 3 4 5 6 7 8 9 10 11

BKBKBKBKBKBKBKBKBK

RD

QP12

RP28

RP27

E

CP25

C
B

QP11

1

BIF13

BK

11

C

SWF02

SPAN

SELECTOR

10/100

FM/MW

9/50

D

SWF02

CD-K449W
ONLY

RU23

1
2
3
4
5
6

CNPU02

7
8
9

RU24

E

VIDEO/AUX2

F

VIDEO/AUX-1

G

H

INPUT

INPUT

L-CH

R-CH

L-CH

R-CH

JR12

JR11

JR11

DR11

CR10

ICR11

DIGITAL

OUT PUT

3
2
1

CNPR11

RU13

RR16 RR15

RR11

RR12

DR12

CR02

LR01

CR01

ZDR01

RR01

3

1 2

CNS99

FROM CD

SERVO PWB

P37 10-H

RU14

CU43

CU61

CU55 CU42

RU01

CU39

CU31

CR13

CR12

CR03

CU51

RR14

CU29

CU27

RR17

CR14

CU52

RR18

CR11

CU33

CU25

RU09

RU11

CU23

RR13

RS30

RS31

CU56

CU32

CU30

CU28

1

64

CU63

CU64

CU01

CU04

CU24

CU16

RU04

CU03

CU18

CU12

CU08

RU06

DU02

RU95

CU26

CU46

DU01

CU22

B C E

QU02

CU58

CU57

CU10

CU36

CU06

CU02

QU01

B C E

RU96

FWD02

FROM

DISPLAY PWB

P40 1-F

RU26

RU25

RU22

WTP02

3

3

WTP01

FW901

FROM

POWER PWB

P54 7-E

RU21

21

21

RU02

CU40

CU62

CU41

RU10

25

32

30

ICU01

35

33

40

CU21

CU15

CU17
RU05

CU09

CU34

17

16

15

20

10

5

60

55

45

50

49

48

CU11
RU03

CU35

CU45

CU05

CU07

TO CD SERVO PWB

CS21

RS33

RS16

RS34

BIF11

1

BKBKBKBKBK

RD

1 2 3 4 5 6

CNP11

P37 10-H

1 2 3

DS03

CS11

QS11

RS18

CS22

6

S
G
D

12

CNSF11

RS32

QS16

15 28

RS15

CS19

14

ICS01

20

CS12

3

4

FROM POWER

RS27

CS18

RS29

5

10

25

RS11

RS14

RS13

CS13

CNPP01

5

678

CNS901

PWB

P45 7-F

RS25

91011

RS28

1

RS26

RS12

RS24

CS15

CS17

CS16

1

E

C

F

1

23456

Figure 38 WIRING SIDE OF P.W.BOARD (2/9)

– 38 –

PWB

B

03

8 9 10 11

BKBKBK

BK

11

BIF13

RU93

W

RS30

RS31

RS32

CS19

QS16

14

10

ICS01

20

15 28

RS15

CS12

CNPP01

12

5

3

4

NSF11

CNS901

FROM POWER

P45 7-F

RG01

RU94

RS27

CS18

RS29

5

25

RS11

RS14

RS13

CS13

678

PWB

FROM SPEAKER

AMP PWB

P44 3-A

CNWV11

1

QG04

E
C
B

RS25

RS28

RS26

RS24

CS17

1

CS16

RS12

1 2 3

E C B

CS15

91011

FROM KARAOKE PWB

FWP01

14

CG08

RK72

QS13

QS12

3

3

2

2

DS01

1

1

DS02

QS17

S

S

G

G

D

RS36

D

RS35

QS14

QS15

RS23

CS14

1 2 3

QP17

CNSU02

P43 7-A

CD-K449W ONLY

1

CP57

2

RS22

RS20

QS18

RG37

CFWP02

7

35

9

11

13

10864

12

CFWP01

RK56

QK40

RK74

RK73

RP73

DG06

CG02

DG04

CG03

B

QG02

C

RG36

3

E

2

RG39

RG29

1

QG01

CG01

DG05

CG04

14

BKBKBKBKBKBKBKBKBKBKBKBKBK

14 13 12 11 10 9 8 7 6 5 4 3 2 1

RK69

14

RK54

1 2 3

QK15

1 2 3

B
C

QK21

E

JP57

1
2

CK55

3

QK29

RK55

RK75

CH12

RG11

RF71
RF72

RF73

RF76

RF77
RF79

RG05

RG23

RG24

RG35

RG31

ZDF01

RG34

DG02
RG57

RG58
RG59

TO CD SERVO PWB

B
C

RG32

E

RG30

CNP12

P37 11-H

QG03

RG33

BIF12

RG08

DG03

RK48

CK37

CK35

RK41

RK53

3
2
1

RF67

CK60

QK18

QK30

RF81
RF82

RF91

CK44

LG01

RF92

E
C
B

E
C
B

RK57

RK58

CK10

RF68
RF69

RF80

QK22

RK47

RK43

RK81

RH11

RF70

CG56

3 2 1
3 2 1

QK19

QK17

RF78

RG10

RD

B
C
E

RH12

RF65

1

3
2

QK27

1

CK36
CK38

QK16

RK49

CK46

CK43

RK52

RK39

RK33

LK01

CK29

CH28

RH17

CH30

8

ICH11

1

4

CG61

RF64

RF61

RF63

RF62

80

81

CG57

RF96

RF94

CG07

DL13

DL14

CNSF12

RK42

CK42

RK50

RK31

5

13

QK26

RK35

CH13

75

85

RF95

CK45

CK31

RH14

12

3
2
1

90

RK65

3
2
1

QK14

LK02

RK36

RK46

CK34

RK40

CK40

CK47

ICK01

12

1011

CK39

CK33

QK13

1
2
3

RK27

RK37

DH11

RH16

RH15

RH13

CH10

CH29

RF53

51

55

60

65

70

ICF01

95

5

100

1

RF97

RG56

RF98

RG19

WTL11

1011

89

RL20

MECHANISM PWB

RK64

QK24

RK60

RK63

RK61

RK28

QK25

CK24

CK26

RK32

CK30

CK32

RK38

1716151413

CK27

RK29

CK41

CK28

RK45

RK25

CK23

CH15

CH26

RH35

RH22

DH12

RH24

RF50

RF47

RF52

RF49

50

45

40

25

20

15

10

RF01

RF02

RG04

RG22

7

RL24

FWM1

FROM TAPE

P43 9-D

E
C
B

RK30

CH25

35

201918

RH21

CH18

RK62

B C E

RK24

RK26

CK22

RK34

RK23

RH36

QG05

RG25

RF46

RF11

CK09

CK21

CK25

CH17

RG55

RF12

RG15

CD-C449W/K449W

CK51

RK20

CK17

RF38

RF28

RF24

CG06

B
C
E

RK03

B
C
E

RK12

RK17

CH22

RF36

QL15

E
C
B

RH25

QK28

RK66

B
C
E

765432

QK07

E
C

CK07

B

RK09

RK07

CK02

RH31

CH23

RH27

DH13

DH16

RG20

RG17

RF37

RF35

RF32

RF29

QL16

3

3

2

2

1

1

RL18

RL17

RK68

RK04

QK03

CK05

QK08

CNPK01

1

RK01

RH32

RH26

CH20

DH20

RG21

RF34

RF31

RF30

QL19

LK04

CK62

B
C
E

23

RF33

RL19

B
C
E

QK04

CH24

QL18

3
2
1

QL14

RK06

RK18

RK89

E C B

RH34

CH19

DH19

RL16

RL15

CK50

B
C
E

RK11

CK08

DH14

3
2
1

CK01

RF22

RF20

QL13

RL14

RL13

1

QK10

QK06

RK08

RG38

RF23

RF21

RF19

RF09

3
2
1

CK06

CNPK02

3
2
1

3
2
1

RF10

RF08

RF07

RF06

QL17

B
C
E

RK10

QL12

RK90

1
3
5
7
9

RL11

RL12

QK11

10

B
C
E

2
4
6
8

3

QL11

RK14

RK15

CNSK02

FROM TAPE
MECHANISM
TAPE2 HEAD

P43 11-H

CNSK01

FROM TAPE

MECHANISM

TAPE1 HEAD

P43 9-H

COLOR TABLE

BR

RD(R)

OR

YL

GR

BL
VL
GY

WH(W)

BK
PK

CNPF01

CNSD1

FROM DISPLAY PWB

P40 2-F

BROWN

RED
ORANGE
YELLOW

GREEN

BLUE

VIOLET

GRAY
WHITE
BLACK

PINK

CK52

RK67

LK03

QK09

RK05

E

RK13

C
B

QK05

CK18

RK22

CK20

CK16

CK14

CK12

24232221

RK02

1

23456789

CK13

CK11

RK19

CK15

RK21

CK19

CH27

RH39

RH37

DH15

RH20

RH30

CH16

RH29

CH21

1
2
3

RF99

DH17

DH18

RG26

RF39

RF40

RF44

RF41

RF42

31

RF27
RF26

30

RF25

XF01

RF17

CG05

RF14

RF13

RF05

RF03

RF04

DL11

RG16

CL13

DL12

123456

CL12

7

8 9 10 11 12

Figure 39 WIRING SIDE OF P.W.BOARD (3/9)

– 39 –

CD-C449W/K449W

D

9

-

0

D

0

0

4

W

LEDD09

RD13

FLD

6

65

70

75

IC

85

90

95

100

LED

SWD0
HAVY

SWD

JOG

CD20

789

RD32

RD50

CD09

RE22

QD06
QD05

23456

CD11

RD57

RD15

CD18
CD21

1

RD61

RD60

321
321

RD16

RD17

SWD15
HIGH-EDIT

RD39

LD01

SWD03
X-BASS

RE21

RD53

RD52

SWD18

SRS/DEMO

RD19

RD31

SWD21

BAL,RIGHT

RD59

RE14 RE13

A

SWD01

CD06
CD05

VOLUME JOG

B

DD01

DD02

RD51

QD04

C

D

QD03

QD02

QD01

CD29

CD28

CD30

FWD02

3
1

RD33

321

321

321

321

RD48

CD19

CNSD01

10

E

RXD01
REMOTE
CONTROL

RE02

CD10

1
3
2

RE04

BAL,LEFT

12 3456789

FLHLD

RD01

RD49

SWD22

RD02

SWD14
NORMAL
EDIT

RD03

LEDD06

LEDD07

RE06

RE15

RE22

RD04

RD58

LEDD03

RD07

RD06

RD05

LEDD05

SWD07
SOFT

SWD16

REC/PAUSE

FF

RE12

RE17

SWD12
TUNING
UP/CUE

1011 12 13 14 15 16 17 18 19 20 2122 23 2

RD10

RD09

RD08

LEDD12

RD11

SWD08
VOCAL

SWD13

STOP

RE16

LEDD11

LEDD13

RE07

STOP

LEDD02

SWD17
F-PLAY

80

81

F-PLAY

LEDD01

JOG P

F

G

H

WTP02

TO MAIN PWB

P38 5-H

1

TO SPEAKER

AMP. PWB

P44 2-A

WTV11

5

LV91

CV91

RV92

CNPF01

FROM MAIN PWB

P39 12-G

FWV91
1

CV92

RV91

OPEN/
CLOSE

SWD54

RE57

SWD53

DISC
SKIP

RE56

HEADPHONES

PWB-C3

23456

Figure 40 WIRING SIDE OF P.W.BOARD (4/9)

– 40 –

CD-C449W/K449W

RD13

DISPLAY PWB-C1

FLD01

19 20 21 22 23 2425 26 2728 29 30 31 32 33 34 3536 37 38 39 40 41 42 43 44 45

50

51

55

45

60

65

70

75

ICD01

85

90

95

100

LEDD10

SWD09
HAVY-2

SWD02

JOG

OG PWB-C4

40

3135

30

25

20

15

10

5

1

LEDD08LEDD09 LEDD15

RD12

RD14

SWD10
HAVY-1

PAUSE

LEDD04

R-PLAY

LEDD20

SWD33
R-PLAY

RD34

XD01

LEDD14 LEDD19 LEDD18

LEDD16

RE08

RE09

SWD31

CD07

CD08

PAUSE

RE32

RE34

TUNING

DOWN/RERWIND

CD01

CD02

CD

RE33

SWD30

+ + +

SWD11

FLAT

SWD32

REVERSE

MODE

RD54

QD07

LEDD17

LEDD21

REW

RD55

3
2
1

RD21

3
2
1

RD22

QD08

46 47

RD26

SWD37

SLEEP

SWD38

CLEAR

RD27

RE35

RE39

RD30

RD67
RD62

RD28

RE38

C449

RE48

SWD39

RE49

RD36

RD66

SWD34
CLOCK

SWD36
TIMER

RE37
RE36

SWD35
MEMORY

K449

SWD43

CD

SWD42

TUNER

SWD41

TAPE1/2

AUX1

VIDEO

SWD40

VIDEO

AUX2

RD35

RE44

RE43

RE42

RD45

RD41

RE45

QD11

1
2
3

RD44

RD43

RD42

RD40

RD38

QD10

1
2
3

RE41

RD37

RD71

RD70

RE51

RE31

RD64

RD65

QD12

1
2
3

RE01

RE11

RD72

1

6

RE53
RE52

SWD48
POWER

WHD01

7

LEDD28

SWD52
DISC3

CD-C449W

RE55

LEDD27

LEDD25

SWD51
D1SC2

CD-K449W

LEDD26

RE54

LEDD23

SWD50
DISC1

SWD49

KARAOKE

CD-K449W ONLY

LEDD24

1

FWD01

6

SWITCH PWB-C2

8 9 10 11 12

Figure 41 WIRING SIDE OF P.W.BOARD (5/9)

– 41 –

CD-C449W/K449W

1 2 3

3 2 1

E C B

321
321
321

321

ECB

ECB

ECB

ECB

ECB

BCE

B C E

1 2 3

123

R321

R302

2345 1

789 6

12

12

131415

11

171819

10

2 3 4 51

7 8 96

2 3 4 51

7 8 9
6

1110

16

222324 21 20

13 14 15 17

18 19
16

222120

1 2 3 4 5 6 7 8 9 10 11

FM MUTE

LEVEL

TUNER PWB-E

P38 5-A

CNP303

C383

FROM MAIN PWB

C382

C387

C380

R376

R360

R397

R398

RT09

QT01

CT16

CT15

CT11

CT02

CT01

BFT01

CT08

RT02

R310

D305

D301

D309

D311

D303

D307

C331

R319

D312

T306

C334

C335

TC304

TC305

T307

R325

L353

C349

T308

Q307

Q308

T302

D308

R320

R318

L311

D304

D302

D306

CT09

CT03

CT05

CT10

CT06

C304

C305

C330

C338

C306

C309

C314

R317

R314

R313

C307

C313

C321

C320

R342

R326

R330

R329

VR351

R343

R315

R322

R328

C316

C318

Q306

R327

D313

D317

D315

D314

D310

C319

C336

R323

R324

C315

D316

C310

C311

C303

CT04

RT01

RT08

RT04

RT10

VDT01

VDT02

CT07

LT02

LT01

CT14

CT12

C301

RT05

RT07

RT03

TT01

Q309

R312

R316

T304

T303

TC302

TC303

C308

C312

R311

CT13

DT01

RT06

ICT01

Q362

Q363

Q364

IC302

C391

Q361

R390

R377

R367

R361

R365

R366

R362

R350

R356

R351 R352

C342

R357

C374
C372

C371

C373

C368

C353

C354

C356

C355

R395

C381

C392

C393

C390

C385

C386

C394

C397

C367

C363

C365

C361

C350

C360

R341

C362

C343

R358

C364

Q353

Q354

L352

R374

R385
R384

R371

R381

R380

R379

R396

R338

R339

R340

L351

R387

R382

ZD352

ZD351

D351

D352

R373

R372

R392

R359

R354

C396

C375

C395

C370

C358

D353

R368

R355

C357

C366

R353

L358

L356

CF302

CF351

C352

C351

C399

Q360

C398

CF352

X352

T351

L357

Q365

X351

IC303

R363

R364

R393

R383

R391

VD301-1

VD302-B

VD302-A

VD301-2

CNSF13

FM

75Ohms

GND

SW1

SW2

MW

SO301

ANTENNA

TERMINAL

A

B

C

D

E

F

G

H

1

23456

Figure 42 WIRING SIDE OF P.W.BOARD (6/9)

– 42 –

CD-C449W/K449W

TO MAIN PWB

CNPU02

P39 8-H

COLOR TABLE

BR

BROWN

RD(R)

RED

OR

ORANGE

YL

YELLOW

GR

GREEN

BL

BLUE

VL

VIOLET

GY

GRAY

WH(W)

WHITE

BK

BLACK

PK

PINK

CNSU02

9
8
7
6
5
4
3
2
1

GY
WH
GY
WH
GY
WH
GY
WH
RD

R667
R668

ZD631

Q631

E
C
B

R670

C672
C673

C677

9

1

R669

C674

VR603
DIGITAL
ECHO

BI601

R611

R612

R604

FWM1

C626

R610

C627

C618

R603

C605

131312 11 10

C622

C623

C620

C621

C617

C619

R614

C608

C604

C606

C633

VR602
MIC2
VOLUME

TO MAIN PWB

P39 10-H

WTL11

987654321

R616

36

IC601

51015

1

C609

R606

R605

R636

MIC LEVEL

R617

C612

R607

C624

C625

19

20253035

18

C634

R608

VR601
MIC1
VOLUME

R615

C610

C628

C631

C613

R618

R609

C611

C629

C615

C616

C630

C632

D601

C602

C601

C614

R602

KARAOKE PWB-L
CD-K449W ONLY

R619

R601

J602
MIC2

L
H

J601
MIC1

MIC

MM1

TAPE MOTOR

TAPE MECHANISM PWB-H

SWM4
REC RVS

SOLENOID

SOLM1

TAPE MECHANISM ASSEMBLY

PHM1

1

2

4

3

PLAYBACK HEAD

TAPE 1

PK

WH

GY

WH

TO MAIN PWB

P39 12-C

CNPK01

FWM1

BK

HEAD PWB-G

BK

PK

213

CNSK01

SWM3
REC FWD

1

RECORD/PLAYBACK/ERASE HEAD

BI 102

6

YL

BL

PKWHBK

WH

GY

SWM6

CAM

TAPE 2

1

GY

4

FLEXIBLE PWB

WH

BK
PK
BL
BK
YL
WH

1

CNSK02

1
2
3
4
5
6
7

FWM2

RM1

TO MAIN PWB

P39 12-B

CNPK02

VRM1

TAPE

SPEED

CNPM2

SWM5
F. A. S

7

8 9 10 11 12

Figure 43 WIRING SIDE OF P.W.BOARD (7/9)

– 43 –

CD-C449W/K449W

A

B

FROM POWER PWB

P45 12-G

CNS903

TO MAIN PWB

FWP01

QV22

DV19

RV38

1

RV60

DV15

P39 7-A

CFWP01

135791113

1412108642

CV12

CFWV11

14

ZDV11

RV59

CV11

FROM FAN MOTOR

RY21

RV62

DV20

FROM

HEADPHONES PWB

P40 2-F

FWV91 CNSV11

WTV11

12345

QV19

B C E

6

7

E C B

RV61

QV18

345

CNPV12

CV30

BCE

RY22

1

2

RV58

P37 8-G

CNPV11

CV48

CV49

DV22

DV25

1 2

QV20

RV57

E C B

RV72

QV21

CV47

RV56

E C B

SPEAKER AMP. PWB-F

ZDV12

RV55

C

CV29

CV28

RV40

CV31

RV43

D

RV41

RV52

RV51
RV42

CV33

RV44

CV34

CV32CV32

DV17

CV21

RV23

RV21

RV33

DV21

E

RLYV11

RV53

DV24

DV23

F

RV54

RV31

DV13

CV27

RV37

CV14

CV16

RV63

RV71

RV29
RV69

RV27

QV16

B C E

CV24

QV13

CV25

CV13

CV19

CV20

RV24RV14

CV15

RV22

RV70

RV30

ECB

RV36

RV32

RV35

RV13

CV22

RV19

RV20

QV14

QV17

CV18

CV23

RV25

RV17

CV17

ECB

ECB

RV18

RV26

RV28

CV26

DV14

ICV01

9101112131415

12345678

G

H

SPEAKER

SPEAKER TERMINAL

1

23456

L-CH

TMV01

SPEAKER

R-CH

Figure 44 WIRING SIDE OF P.W.BOARD (8/9)

– 44 –

SW991

VOLTAGE SELECT

CD-C449W/K449W

AC 110/127/220/230-240V

COLOR TABLE

BR

BROWN

RD(R)

RED

OR

ORANGE

YL

YELLOW

GR

GREEN

BL

BLUE

VL

VIOLET

GY

GRAY

WH(W)

WHITE

BK

BLACK

PK

PINK

AC POWER

SUPPLY
50/60Hz

(242)

(285)

(285)

F990

T3.15A L 250V

F991

T1.6A L 250V

110V 230–240V

127V 220V

F992

T1.6A L 250V

POWER PWB-D

T.F.

T991

POWER TRANSFORMER

CNPP01

TO MAIN PWB

WTP02

TO MAIN PWB

11
10

9
8
7
6
5
4
3
2
1

WH
WH
WH
WH
WH
WH
WH
WH
WH
WH

RD

R906

C905

R954

R904

R953

1 1

BI901

1

R905

BCE

C906

1 2 3

Q951

ZD952

D952
D953

FW901

D954

C964

ECB

R955

C965

ZD902

Q903

R957

R956

C962

C963

D951

C959

C961

C911

ZD951

D905

Q908

C960

D903

D904

C910

C958

ZD904

D994

Q909

ECB

R912

ECB

D995

D993

D992

C919

F999

T500mA L 250V

R911

ZD903

C907

F997

T2A L 250V

Q902

R907

ECB

Q901

C904

C957

C903

R903

C909

R902

D901

R909

R908

321

Q904

Q907

321

Q906

E C BE C B

R910

ECB

C954

C956

C908

Q913

Q905

ZD901

E
C
B

C920

–+

~ ~

R901

C901

R918

1

BI903

7

C902

D991

R917

Q914

321

RD
WH
WH
WH
WH
WH
WH

CNS903

1
2
3
4
5
6
7

7

8 9 10 11 12

Figure 45 WIRING SIDE OF P.W.BOARD (9/9)

– 45 –

CD-C449W/K449W

TROUBLESHOOTING

When the CD does not function

When the CD section does not operate When the objective lens of the optical pickup is dirty,this section may not operate.Clean
the objective lens,and check the playback operation.When this section does not operate even after the above step is taken,check
the following items.
Remove the cabinet and follow the troubleshooting instructions.
"Track skipping and/or no TOC(Table Of Contents) may be caused by build up of dust other foreign matter on the laser pickup lens.
Before attempting any adjustment make certain that the lens is clean. If not, clean it as mentioned below."

Turn the power off.
Gently clean the lens with a lens cleaning tissue and a small amount of isopropyl alcohol.
Do not touch the lens with the bare hand.

• When the turntable fails to stop.

5V

Is from 5 V till 2.5V down pulse (approx. 300 ms)

2.5V
0V

input into the ICF01 pin 91 when the turntable is rotating?

Yes

Is there following voltage input on the ICF01 pin 91 in the
specific state?
When the CD mechanism is moved up: 0V

In other states: 4.3V

No

No

Check the SW3 and the wiring from the ICF01 pin 91 to the
SW3.

Check the MECHA UP SW and the wiring from the ICF01 pin
91 to the MECHA UP SW.

Yes

Check IC2 pin26 Q91 and Q93 and the periphery.

Yes

ICF01 defective.

• When turntable fails to move.

Is there following voltage input on the ICF01 pin 91 in the
specific state?

When the CD mechanism is moved up: 0V

In other states: 4.3V

Yes

Is L output from the IC2 pin 26 during SEC when the disc skip
switch is pressed?

Yes

No

No

Check the MECHA UP SW and the wiring from the ICF01 pin
91 to the MECHA UP SW.

Check the wiring of IC2 pin 26 and Q93 pin 2.

OK

IC2 defective.

Is 4V output from the Q91 emitter during operation stated
above?

Yes

Check turntable motor and turntable mechanism.

No

– 46 –

Check Q91, Q93 and the periphery.

• When the CD tray fails to open or close.

CD-C449W/K449W

Is there following voltage input in specific state of ICF01 pin 93?
Open state: 0V
Close state: 0V
Intermediate state between open state and close state: 4.3V

Yes

Is H output to IC2 pin 24 or 25 for 7 seconds when the OPEN/
CLOSE key is pressed?IC81 is defective. Replace it.

Yes

Is 4V output between IC81 pins 3 and 7 during operation
stated above?

Yes

Check the loading motor (M1) and the loading mechanism.

• The CD function will not work.

The CD operating keys don't work.

No

No

No

Check the OPEN CLOSE SW and the wiring from the ICF01
pin 93 to the OPEN CLOSE SW.

Check the wiring of the IC2 pins 24 and 25, IC81 pins 1 and 3.

OK

IC2 defective.

Check the periphery of IC81.

OK

IC81 defective.

Yes

Check the CD, DSP, power supply, and 16.93 MHz clock, and
reset terminal.

Yes

Check the waveform of SCK, SO (DATA) and SI (COMM).

Yes

See if the pick-up is the in PICKUP IN SW position.

Yes

If the items mentioned above are OK, check the main
microcomputer ICF01.

• The CD operating keys work.

Check the Focus - HF system.

Playback can be performed without a disc.

Yes

Does the pick-up move up and down twice?

No

0.5s

0.50 V
IC1 16 FD

0.5s

0.50 V
IC1 7 TE

Yes

Focus search OK

Figure 47

Focus search is
performed two
times when play
operation is done
without disc.

1
2

Does the output waveform of IC1(16)(FD) match that shown in
Fig. 47?

No

Check the IC1(50)(CLK) line, 4MHz.
Check the microcomputer data on pins (51)(CL), (52)(DAT)
and (53)CE.

Yes

Check the area around IC3-CNP2.

– 47 –

CD-C449W/K449W

• Playback can only be performed when a disc is
loaded.

Is the Focus servo active? (Can you hear it working?)

Yes

Does the DRF signal change from "L" to "H"?

Yes

Is HF waveform normal (see the Fig.48-1, 2)?

Yes

Check the tracking system.

HF

1.0V/DIV

0.5µsec/DIV(DC)
(When playing
back the disc)

Figure 48-1

• Check the tracking system.

No

No

No

0.5s

1.00 V
IC1 16 FD

0.5s

10.0 V
IC2 13 CLV+

0.5s

10.0 V
IC1 54 DRF

0.5s

2.00 V
IC1 7 TE

Check the laser diode driver.
Check the area around IC1(16) - (21) (focus servo circuit).

If the disc is not turning, the DRF
should not change to "H".

Level is abnormal.

Waveform is unstable.

Yes

Yes

Yes

Figure 48-2

Check the spin system.

Check the periphery of
IC1 pins 41 and 42.

Check the spin system.

Waveform in case of
normal play-back

2

1

3
4

Check waveform of IC1 pin 7 (TE).

The waveform shown in
Fig.48-3 appears, and no­disc state appears soon.

Play is possible in
TEST mode.

Data cannot be read.

5ms

1.00 V
IC1 7 TE

5 ms

5.0 V
IC1 54 DRF

Yes

Tracking servo is

Yes

inoperative.

Although IL is possible,
play is impossible.

Yes

Check the periphery of IC 1

Yes

Yes

Check the VCO-PLL system.

pin 8 to pin 15, and IC 3 to
CNP2.

Normal jump is impeded,
and the program top
cannot be reached.

Check the periphery

Yes

of IC 1 pin 14.

4

3

Figure 48-3

– 48 –

• Checking the spin system.

Play operation is performed without disc.

Yes

CD-C449W/K449W

The turntable rotates a little.

No

The turntable fails to rotate or rotates at high speed.

• Checking the VCO-PLL system

Play operation is performed when disc exits.

Yes

Although HF waveform is normal, TOC data cannot be read.

Stop --> Play

As VCO freque­ncy is locked at

0.5s

1.00 V
IC2 3 PDO

0.5s

1.00 V
IC2 16 FD

4.32 M Hz, voltage
of PDO rises and
stabilizes.

2

Yes

Yes

Yes

The spin driver circuit is normal.

Check the periphery of IC1 pins 23 to 27, pin 39, and pin 40, IC2
pin 12 and pin 13, IC5 to CNP3.

Check PDO waveform (Fig. 49).

Abnormal

Check the IC1 pins 43 and 44, IC2 pins 3, 5, 7, 10, and 11.

3

Figure 49

• Although HF waveform is normal and the time
indication is normal, no sound is emitted.

Check IC 2 pin 48 (EFLG).

Yes

Check IC2 pins 37, 40.

Abnomal

Check IC 401 and POWER AMP ICV01 and ICX01.

No

Usually, the number of pulses of flawless disc is 100 pulses/sec
or less.

– 49 –

CD-C449W/K449W

FUNCTION TABLE OF IC

IC2 VHiLC78622K-1: Servo/Signal Control (LC78622K) (1/2)

Pin No.

1 DEFI Input Input terminal of defect detection signal (DEF). (Connected to OV when not used.)
2 TAI Input For PLL Input terminal for test. Pull-down resistor is integrated. Surely connected to 0V.
3 PDO Output Output terminal of phase comparison for external VCO control.
4 VVSS — Ground terminal for integrated VCO. Surely connected to 0V.
5 ISET Input Resistance connection terminal for current adjustment of PDO output.
6 VVDD — Power terminal for integrated VCO.
7 FR Input VCO frequency range adjustment.
8 VSS — Ground terminal of digital system. Surely connected to 0V.
9 EFMO Output For slice level control EFM signal output terminal.
10 EFMIN Input EFM signal input terminal.
11 TEST2 Input Input terminal for test. Pull-down resistor is integrated. Surely connected to 0V.
12 CLV+ Outout Output for disk motor control. 3 values can be output with the commands.
13 CLV- Output Output for disk motor control. 3 values can be output with the commands.
14 V/P Output Monitor output terminal for automatic switch of rough servo/phase control.

15 HLF Intput Input terminal of track detection signal. Schmit input.
16 TES Input Input terminal of tracking error signal. Schmit input.
17 TOFF Output Tracking OFF output terminal.
18 TGL Output Output terminal for switch of tracking gain "L" increases the gain.
19 JP+ Output Output for track jump control. 3 values can be output with the commands.
20 JP- Output Output for track jump control. 3 values can be output with the commands.
21* PCK Output Clock monitor terminal for EFM data replay. 4,3218MHz as the phase clock.
22* FSEQ Output Output terminal synchronous signal detection. "H" is output when synchronous signal detected

23 VDD — Power terminal of digital system.
24 CONT1 Input/Output General purpose input/output terminal 1
25 CONT2 Input/Output General purpose input/output terminal 2
26 CONT3 Input/Output General purpose input/output terminal 3
27 CONT4 Input/Output General purpose input/output terminal 4
28* CONT5 Input/Output General purpose input/output terminal 5
29* EMPH Output Difference monitor terminal At "H", deemphasis disk is being replayed.
30* C2F Output C2 flag output terminal.
31 DOUT Output Output terminal of digital OUTPUT. (EIAJ format)
32* TEST3 Input Input terminal for test. Pull-down resistor is integrated. Surely connected to 0V.
33 TEST4 Input Input terminal for test. Pull-down resistor is integrated. Surely connected to 0V.
34 N.C. — Terminal not used. Open during operation.
35* MUTEL Output L channel 1 bit DAC Mute output terminal for L channel.
36 LVDD — Power terminal for L channel.
37 LCHO Output L channel output terminal.
38 LVSS — Ground terminal for L channel Surely connected to 0V.
39 RVSS — R channel 1 bit DAC Ground terminal for R channel Surely connected to 0V.
40 RCH0 Output R channel output terminal.
41 RVDD — Power terminal for R channel.
42* MUTER Output Mute output terminal for R channel.
43 XVDD — Power terminal for quartz oscillation.
44 XOUT Output Ground terminal of 16.9344 MHz quartz oscillator.
45 XIN Input Ground terminal of 16.9344 MHz quartz oscillator.
46 XVSS — Ground terminal for quartz oscillation. Surely connected to 0V.
47* SBSY Output Output terminal of synchronous signal of subcode block.
48* EFLG Output Correction monitor terminal of C1, C2, single and double.

Input/Output

"H" for rough servo, and "L" for phase servo.

by EFM signal matches synchronous signal internally generated.

FunctionTerminal Name

Controlled with serial data command
from micro computer.
When not used, set it as the input terminal and
open it by connecting to 0V, or set it as the output
terminal and open it.

In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.

– 50 –

CD-C449W/K449W

DEFI

EFMIN

FSEQ

V/P
PW

SBCK

SBSY
SFSY

CS

WRQ

SQOUT

COIN

RWC

CQCK

HFL

TES

TOFF

JP-

JP+

RES

TGL

CONT1

CONT2

CONT3

CONT4

CONT5

EMPH

EFLG

16M

4.2M

XVss

FSX

XIN

XOUT

XV

DD

RVss

RV

DD

MUTER

RCHO

LCHO

MUTEL

LVss

LV

DD

(NC)

DOUT

C2F

EFMO

VVDDVVss

PDO

I SET

FR

PCK

TAI

TSTI1

TEST1

TEST2

TEST3

TEST4

TEST5

VDDVss

CLV+

CLV-

Slice level

control

VCO colck oscillation

clock control

2K x 8bit

RAM

RAM address

generator

Interpolation mute

Bilingual

Digital OUT

Digital

attenuator

X4 oversampling

digital filter

1bitDAC

L.P.F

XTAL system timing

generator

General-use port

Servo commander

µCOM

Interface

Subcode division

QCRC

CLV

Digital servo

Sync detection

EFM demodulation

Flag processing of C1/C2

error detection and correction

IC2 VHiLC78622K-1: Servo/Signal Control (LC78622K) (2/2)

Pin No.

Input/Output

49* PW Output Output terminal of subcodes P, A, R, S, T, U and W.
50* SFSY Output Output terminal of synchronous signal of subcode frame. It drops when subcode stands by.
51 SBCK Input Clock input terminal to read subcode. Schmit input (Connected to 0V when not used.)
52* FSX Output Output terminal of synchronous signal of 7.35kHz divided from quartz oscillation.
53 WRQ Output Output terminal to stand by output of subcode Q.
54 RWC Input Input terminal of read/write. Schmit input.
55 SQOUT Output Output terminal of subcode Q.
56 COIN Input Command input terminal from microcomputer.
57 CQCK Input Clock input terminal to fetch command input, or pick up subcode from SQOUT. Schmit input
58 RES Input Reset input terminal of LC78622. When turning on power, set it at "L".
59* TEST11 Output Output terminal for test. Used in the open state ("L" output as ordinary).
60* 16M Output Output terminal of 16.9344Hz.
61 4.2M Output Output terminal of 4.2336MHz.
62 TEST5 Input Input terminal for test Pull-down resistor is integrated. Surely connected to 0V.
63 CS Input Chip selection input terminal. Pull-down resistor is integrated.

Connected to 0when not controlled.

64 TEST1 Input Input terminal for test Pull-down resistor is integrated. Surely connected to 0V.

Note: The same potential must be supplied to the power terminals (VDD, VVDD, LVDD, RVDD, XVDD).

FunctionTerminal Name

In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.

Figure 51 BLOCK DIAGRAM OF IC

– 51 –

CD-C449W/K449W

IC1 VHiLA9241M/-1: Servo Amp. (LA9241M) (1/2)

Pin No.

1 FIN2 Connection pin for photodiode of pickup.

2 FIN1 Connection pin for photodiode of pickup.
3 E Connection pin for photodiode of pickup. TE signal is generated through subtraction with F pin.
4 F Connection pin for photodiode of pickup.
5 TB Pin for input of DC component of TE signal.
6 TE- Pin to connect gain setting resistor of TE signal to TE signal.
7 TE TE signal output pin.
8 TESI TES (Track error sense) comparator input pin. TE signal is band-passed and input.
9 SCI Input pin for shock detection.
10 TH Pin to set time constant of tracking gain.
11* TA TA amplifier output pin.
12 TD- Pin to compose tracking phase compensation constant between TD and VR pins.
13 TD Pin to set tracking phase compensation.
14 JP Pin to set amplitude of tracking jump signal (kick pulse).
15 TO Tracking control signal output pin.
16 FD Focusing control signal output pin.
17 FD- Pin to compose focusing phase compensation constant between FD and FA pins.
18 FA Pin to compose focusing phase compensation constant between FD-/FA-pins.
19 FA- Pin to compose focusing phase compensation constant between FA and FE pins.
20 FE Output pin of FE signal.
21 FE- Pin to connect gain setting resistor of FE signal across TE pin.
22 AGND GND for analog signal.
23 NC No connect.
24 SPI Spindle amplifier input.
25 SPG Pin to connect gain setting resistor in the 12cm mode of spindle.
26 SP- Pin to connect spindle phase compensation constant together with SPD pin.
27 SPD Spindle control signal output pin.
28 SLEQ Pin to connect thread phase compensation constant.
29 SLD Thread control signal output pin.
30 SL- Input pin of thread feed signal from micro computer.
31 SL+ Input pin of thread feed signal from micro computer.
32 JP- Input pin of tracking jump signal from DSP.
33 JP+ Input pin of tracking jump signal from DSP.
34 TGL Input pin of tracking gain control signal from DSP. TGL = Gain low at "H"
35 TOFF Input pin of tracking off control signal from DSP. TOFF = Off at "H"
36 TES Output pin of TES signal to DSP.
37 HFL (HIGH FREQUENCY LEVEL) is used to judge whether main beam is positioned on the bit or on the mirror.
38 SLOF Thread servo off control input pin.
39 CV- Pin to input CLV error signal from DSP.
40 CV+ Pin to input CLV error signal from DSP.
41 RFSM RF output pin.
42 RFS- Pin to set gain of RF and set 3T compensation constant together with RFSM pin.
43 SLC (SLICE LEVEL CONTROL) is the output pin to control of the level of the data slice with RF waveform DSP.
44 SLI Input pin to control the level of data slice with DSP.
45 DGND GND pin in the digital system.
46 FSC Output pin for focus search smoothening capacitor.
47 TBC (Tracking Balance Control) Pin to set EF balance variable range.
48* NC No connect.
49 DEF Defect detection output pin of disk.
50 CLK Reference clock input pin. 4.23MHz of DSP is input.

Port Name

RF signal is generated through addition with FIN pin, and FE signal is generated through subtraction.

Function

In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.

– 52 –

IC1 VHiLA9241M/-1: Servo Amp. (LA9241M) (2/2)

CD-C449W/K449W

Pin No.

Port Name

Function

51 CL Micro computer command clock input pin.
52 DAT Micro computer command data input pin.
53 CE Micro computer command chip enable input pin.
54 DRF (DETECT RF) RF level detection output.
55 FSS (Focus Serch Select) Pin to switch focus search mode. (± search/+ search for reference voltage)
56 VCC2 VCC pin for servo system and digital system.
57 REFI Pin to connect pass control for reference voltage.
58 VR Reference voltage output pin.
59 LF2 Pin to set defect detection time constant of disk.
60 PH1 Pin to connect capacitor for peak hold of RF signal.
61 BH1 Pin to connect capacitor for bottom hold of RF signal.
62 LDD APC circuit output pin.
63 LDS APC circuit output pin.
64 VCC1 RF system VCC pin.

VCC1

APC

1FIN2

RF DET

REF

DEFCLKCLDATCEDRFFSSVCC2REFIVRLP2PH1BH1LDDLDS

495051525354555657585961 60626364

48

NC

FIN1

TESI

47

2

TE

VCA

VCA

µ-COM

INTER FACE

SLC

RF AMP

I/V

3

E

4

F

5

TB

6

TE-

7

TE

8

9

SCI

BAL

T.SERVO & T.LOGIC

10

TH

11

TA

12

TD-

13

TD

14

JP

F.SERVO & F.LOGIC SPINDLE SERVO SLED SERVO

TBC

46

FSC

45

DGND

44

SLI

43

SLC

42

RFS-

41

RFSM

40

CV+

39

CV-

38

SLOF

37

HFL

36

TES

35

TOFF

34

TGL

33

JP+

15

TO

16

FD

17 18 19 20 21 2322 25 26 27 28 29 30 31 32

FD-

FA FA-

FE FE- AGND SP SPI SPG SP- SPD SLEQ SLD SL- SL+ JP-

24

NC

Figure 53 BLOCK DIAGRAM OF IC

– 53 –

CD-C449W/K449W

ICF01 RH-iX0235AWZZ:System Microcomputer (IX0235AW)

Port NamePin No.

1,2 P00-P01 Input/Output 8-Bit input/output port. Input/output can be specified in 4-bit units

3-10 P10-P17 Input/Output 8-Bit input/output port. Input/output can be specified in 1-bit units

11 P70 Input/Output 6-Bit input port. Dual-purpose function

12 RES Input Reset terminal
13 XT1/P74 Input Input terminal for 32.768 KHz crystal oscillator

14 XT2/P75 Output Output terminal for 32.768 KHz crystal oscillator

15 VSS1 — Negative power terninal
16 CF1 Input Intput terminal for ceramic oscillator
17 CF2 Output Output terminal for ceramic oscillator
18 VDD1 — Positive power terninal
19-26 P80-P87 Input 8-Bit input port. Dual-purpose function

27-29 P71-73 Input 6-Bit input port. Dual-purpose function

30-37 S0/PA0- Input/Output Segment output terminal for LCD display

38-45 S8/PB0- Input/OUtput Segment output terminal for LCD display

46-53 S16/PC0- Input/Output Segment output terminal for LCD display
(48*,51*,53*)

54,55 S24/PD0
(55*) S25/PD1 Usable as general-purpose input/output port (PD)

56 VDD2 — Positive power terninal
57 VSS2 — Negative power terninal
58-63 S26/PD2- Input/Output Segment output terminal for LCD display

(58*-60*) S31/PD7 Usable as general-purpose input/output port (PD)
64-71 S32/PE0- Input/Output Segment output terminal for LCD display

(66*) S39/PE7 Usable as general-purpose input/output port (PE)
72-79 S40/PF0- Input/Output Segment output terminal for LCD display

(74*,78*) S47/PF7 Usable as general-purpose input/output port (PF)
80-82 V1/PL4- Input Bias power terminal for LCD drive

83-86 COM0/PL0- Input/Output Common output terminal for LCD display

87*,88* P30-P31 Input/Output 6-Bit input/output port. Input/output can be specified in 1-bit units
89 VSS3 — Negative power terninal
90 VDD3 — Positive power terninal
91-94 P32-P35 Input/Output 6-Bit input/output port. Input/output can be specified in 1-bit units

(94*)
95-100 P02-P07 Input/Output 8-Bit input/output port. Input/output can be specified in 4-bit units

(95*,96*,99*)

S7/PA7 Usable as general-purpose input/output port (PA)

S15PB7 Usable as general-purpose input/output port (PB)

S23/PC7 Usable as general-purpose input/output port (PC)

V3/PL6 Usable as general-purpose input/output port (PL)

COM3/PL3 Usable as general-purpose input/output port (PL)

In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.

Input/Output

HOLD release input. Port 0 interrupt input

Dual-purpose function
P10: SIO0 data output
P11: SIO0 data input input/bus input/output
P12: SIO0 clock input/output
P13: SIO1 data output
P14: SIO1 data input input/bus input/output
P15: SIO1 clock input/output
P16: BUZ output
P17: Timer 1 output (PWM output)

P70: INT0 input/HOLD release input/Nch-Tr. Output for watchdog timer

Connected to VDD when not used
Dual-purpose function
General-purpose input port P74

Open when not use
Dual-purpose function
General-purpose input port P75

AD input port (8 pcs.)

P71: INT1 input/HOLD release input
P72: INT2 input/timer 0 event input
P73: INT3 input (input with noise filter)/ timer 0 event input

-

Input/Output Segment output terminal for LCD display

HOLD release input. Port 0 interrupt input

– 54 –

Function

CD-C449W/K449W

ICD01 RH-iX0234AWZZ:System Microcomputer (IX0234AW) (1/2)

Port NamePin No.

1-2 P16-P17 Input/Output 8-Bit input/output port. Input/output can be specified in 1-bit units
(1*,2) Dual-purpose function

3-10 P30-37 Input/Output 8-Bit input/output port. Input/output can be specified in 1-bit units
(5*-7*) Dual-purpose function

11 P70 Input/Output 4-Bit input/output port. Input/output can be specified in 1-bit units.

12 RES Input Reset terminal
13 XT1/P74 Input Input terminal for 32.768 KHz crystal oscillator

14 XT2/P75 Output Output terminal for 32.768 KHz crystal oscillator

15 VSS1 — Negative power terninal
16 CF1 Input Intput terminal for ceramic oscillator
17 CF2 Output Output terminal for ceramic oscillator
18 VDD1 — Positive power terninal
19-22 P80-P83 Input 4-Bit input/output port. Input/output can be specified in 1-bit units.

23-27 P84-P87 Input 4-Bit input/output port. Input/output can be specified in 1-bit units.

27-29 P71-73 Input 4-Bit input/output port. Input/output can be specified in 1-bit units.

30-36 S0/T0- Output Fluorescent charcater display tube (VFD)display controller
(30*-32*) S6/T6 Segment/timing shared output

37-45 S7/T7- Input/OUtput Fluorescent charcater display tube (VFD)display controller

S15/T15 Segment/timing shared output

46 VDD3 — Positive power terninal
47-50 S16-S20 Input/Output Fluorescent charcater display tube (VFD)display controller

51 VP — Negative power terminal (Independent power supply only for fluorescent character display tube

52-63 S21-S31 Input/Output Fluorescent charcater display tube (VFD)display controller

In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.

Input/Output

Function

P16: BUZ output
P17: Timer 1 output (PWM output)

Nchannel open output: 15V withstand rating

2-Bit input port. Dual-purpose functio
P70: INT0 input/HOLD release input/Nch-Tr. Output for watchdog timer

Connected to VDD when not used
Dual-purrpose function
General-purpose input port P74

Dual-purrpose function
General-purpose input port P75
When not use. (Oscillatication specification) Open. (Port specification) Connect to VDD1.

4-Bit input port. Dual-purrpose function
AD input port (8 pcs.)

4-Bit input port. Dual-purrpose function
AD input port (8 pcs.)

4-Bit input port. Dual-purrpose function
P71: INT1 input/HOLD release input
P72: INT2 input/timer 0 event input
P73: INT3 input (input with noise filter)/ timer 0 event input

Pull-down resistance built-in output

Segment output
Dual-purrpose function
S16: High voltage withstand input port PC0
S17: High voltage withstand input port PC1
S18: High voltage withstand input port PC2
S19: High voltage withstand input port PC3
S20: High voltage withstand input port PC4

drive output)
(Power supply for pull-dowen resistores)

Segment output
Dual-purrpose function
S21: High voltage withstand input port PC5
S22: High voltage withstand input port PC6
S23: High voltage withstand input port PC7
S24: High voltage withstand input port PD0
S25: High voltage withstand input port PD1
S26: High voltage withstand input port PD2
S27: High voltage withstand input port PD3
S28: High voltage withstand input port PD4
S29: High voltage withstand input port PD5
S30: High voltage withstand input port PD6
S31: High voltage withstand input port PD7

– 55 –

CD-C449W/K449W

ICD01 RH-iX0234AWZZ:System Microcomputer (IX0234AW) (2/2)

Port NamePin No.

64-71 S32-S39 Input/Output Fluorescent charcater display tube (VFD)display controller

72 VDD4 — Positive power terninal
73-80 S40-S47 Input/Output Fluorescent charcater display tube (VFD)display controller

(76*-78*) Segment output

81-84 S48-S51 Input/Output Fluorescent charcater display tube (VFD)display controller

85-88 P00-P03 Input/Output 8-Bit input/output port. Input/output can be specified in 4-bit units.

89 VSS2 — Negative power terninal
90 VDD2 — Positive power terninal
91-94 P04-P07 Input/Output 8-Bit input/output port. Input/output can be specified in 4-bit units.

95-100 P10-P17 Input/Output 8-Bit input/output port. Input/output can be specified in 1-bit units
(98*-100*)

In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.

Input/Output

Function

Segment output
Dual-purrpose function
S32: High voltage withstand input port PE0
S33: High voltage withstand input port PE1
S34: High voltage withstand input port PE2
S35: High voltage withstand input port PE3
S36: High voltage withstand input port PE4
S37: High voltage withstand input port PE5
S38: High voltage withstand input port PE6
S39: High voltage withstand input port PE7

Dual-purrpose function
S40: High voltage withstand input port PF0
S41: High voltage withstand input port PF1
S42: High voltage withstand input port PF2
S43: High voltage withstand input port PF3
S44: High voltage withstand input port PF4
S45: High voltage withstand input port PF5
S46: High voltage withstand input port PF6
S47: High voltage withstand input port PF7

Segment output
Dual-purrpose function
S48: High voltage withstand input port PG0
S49: High voltage withstand input port PG1
S50: High voltage withstand input port PG2
S51: High voltage withstand input port PG3

HOLD release input. Port 0 interrupt input
N channel open output: 15V withstand rating

HOLD release input. Port 0 interrupt input
N channel open output: 15V withstand rating

Dual-purpose function
P10: SIO0 data output
P11: SIO0 data input input/bus input/output
P12: SIO0 clock input/output
P13: SIO1 data output
P14: SIO1 data input input/bus input/output
P15: SIO1 clock input/output
P16: BUZ output
P17: Timer 1 output (PWM output)

– 56 –

FLD01 : VVKBJ614GK/-1 FL Display

12G 8G 7G 6G 5G 3G 2G 1G

11G 10G 9G 4G

S3

h

f

g

r

e

p

d

S4

CD-C449W/K449W

CO

B7 B7

B14 B14

B21

S6

S5

a

j

b

k

m

B8

n

c

B1

S2

DP

(2G) (1G)

B15

B1

B8

S1

P1
P2
P3
P4
P5
P6
P7
P8

P9
P10
P11
P12
P13
P14
P15
P16
P17
P18
P19
P20
P21
P22
P23
P24
P25
P26
P27

1G2G3G4G5G6G7G8G9G10G11G12G

–

–

–

–

–

–

–

–

–

–

–

S6
S4
S5
S3

–

–

–

–

–

–

–

–

–

–

–

S6

S6

S6

S4

S4

S4

S5

S5

S5

S3

S3

S3

a

a

a

h

h

h

j

j

j

k

k

k

b

b

b

f

f

f

m

m

m

g

g

g

c

c

c

e

e

e

r

r

r

p

p

p

n

n

n

d

d

d

DP

DP

DP

–

–

–

–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–

DP

–

–

–

–

–

–

–

S6

S6

S6

S4

S4

S4

S5

S5

S5

S3

S3

S3

a

a

a

h

h

h

j

j

j

k

k

k

b

b

b

f

f

f

m

m

m

g

g

g

c

c

c

e

e

e

r

r

r

p

p

p

n

n

n

d

d

d

DP

DP

DP

–

–

–

CO

–
–
–
–

–

–

B7

–

–

B14
S6
S4
S5
S3

a

a

h

h

j

j

k

k

b

b

f

f

m

m

g

g

c

c

e

e

r

r

p

p

n

n

d

d

DP

–

B21

B6
B13
B20

B5
B12
B19

B4
B11

–

B18

–

B3B

–

B10

–

B17

–

B2

–

B9

–

B16

–

B1

–

B8

–

B15

–

S2

–

–
–

–

B7

B14

–

B6

B13

–

B5

B12

–

B4

B11

–

B3

B10

–
B2
B9

–
B1
B8

–
S1

PIN No.

CONNECTION

PIN No.

CONNECTION

8G9G10G11G12GNPNPF2F2

1617181920212223

Figure 57 FL DISPLAY

– 57 –

303132333435363738394041424344454647

P26P271G2G3G4G5G6G7G

NPNP F1F1P1P2P3P4P5P6P7P8P9P10P11P12P13P14P15P16P17P18P19

242526272829

P20P21P22P23P24P25

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